Crossword Genius

Behave badly (3,2)

Ross

I believe the answer is:

act up

<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">behave badly</span>' is the definition.<br/ ><span class="explanation-format__explanation">(act up can mean to misbehave)</span><br/ ><br/ >This is the entire clue.<br/ ></span>

(Other definitions for act up that I've seen before include "Behave like a brat" , "take part in heightened drama?" , "Give trouble, make a fuss" , "create fireworks display?" , "Become unpleasant" .)

I've seen this clue in The Times, The Telegraph, the L.A. Times Daily, The Guardian, The Washington Post, the USA Today, The Sun and the Universal.
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