Gasps (5)
I believe the answer is:
pants
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">gasps</span>' is the definition.<br/ ><span class="explanation-format__explanation">('pant' can be a synonym of 'gasp')</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for pants that I've seen before include "Useless - underwear" , "Breathes heavily in trousers" , "Shocking" , "Knickers" , "Puffs, gasps" .)