23 across
…
space,
taking
singular,
short,
sharp
breath
(4)
… space, taking singular, short, sharp breath (4)
hints
0
checks
0
hints
The definition is at the end of the clue.
How the clue works
Look at short, sharp breath — that's your definition, and it's exactly what a gasp is. For the wordplay, a word for a space is GAP, and it's "taking" S (the usual abbreviation for singular), so the S slips inside to give GA-S-P.