"new broom" meaning in English

{
  "forms": [
    {
      "form": "new brooms",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "new broom (plural new brooms)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "In one way, Mr. Brown's position is particularly difficult, because unlike other political leaders he cannot claim to be a new broom. The Economist in article \"Labour pains\" on Dec 1st 2007"
        }
      ],
      "glosses": [
        "A new leader or management."
      ],
      "id": "en-new_broom-en-noun-pN4cyHl2",
      "related": [
        {
          "word": "a new broom sweeps clean"
        }
      ],
      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "new leader or management",
          "word": "uusi luuta"
        },
        {
          "code": "pl",
          "lang": "Polish",
          "sense": "new leader or management",
          "word": "nowa miotła"
        }
      ]
    }
  ],
  "word": "new broom"
}

{
  "forms": [
    {
      "form": "new brooms",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "new broom (plural new brooms)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "a new broom sweeps clean"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns"
      ],
      "examples": [
        {
          "text": "In one way, Mr. Brown's position is particularly difficult, because unlike other political leaders he cannot claim to be a new broom. The Economist in article \"Labour pains\" on Dec 1st 2007"
        }
      ],
      "glosses": [
        "A new leader or management."
      ]
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "new leader or management",
      "word": "uusi luuta"
    },
    {
      "code": "pl",
      "lang": "Polish",
      "sense": "new leader or management",
      "word": "nowa miotła"
    }
  ],
  "word": "new broom"
}