Shower naked, holding cloth (7)
I believe the answer is:
barrage
'shower' is the definition.
(thesaurus)
'naked holding cloth' is the wordplay.
'naked' becomes 'bare' (synonyms).
'holding' is an insertion indicator.
'cloth' becomes 'rag' (rag is a kind of cloth).
'bare' enclosing 'rag' is 'BARRAGE'.
(Other definitions for barrage that I've seen before include "Volley" , "Artillery bombardment; barrier across a river" , "Continuous fusillade or a torrent of questions" , "Sustained fire" , "number of shots" .)