Beachwear (6)
I believe the answer is:
bikini
'beachwear' is the definition.
(I have seen 'Skimpy beachwear ' mean 'bikini' so perhaps 'beachwear' could also mean 'bikini')
This is the entire clue.
(Other definitions for bikini that I've seen before include "strip of beach" , "Site of A-Bomb tests; resultantly shocking swimwear!" , "Skimpy two-piece swimsuit" , "Coral island" , "practised here with explosive results" .)