Strippers stagger around clutching nether regions (7)
I believe the answer is:
nudists
'strippers' is the definition.
(nudists strip naked)
'stagger around clutching nether regions' is the wordplay.
'stagger' becomes 'stun' (both can mean to shock).
'around' shows that the letters should be reversed in order.
'clutching' indicates putting letters inside.
'nether regions' becomes 'Dis' (Roman name for the underworld).
'stun' reversed gives 'nuts'.
'nuts' going around 'dis' is 'NUDISTS'.
(Other definitions for nudists that I've seen before include "Things abandoned by those" , "they're not in gear" , "they reveal all" , "They're exposed" , "exposed people" .)