Wrong denim, right bodyguard (6)
I believe the answer is:
minder
'bodyguard' is the definition.
(I've seen this before)
'wrong denim right' is the wordplay.
'wrong' indicates an anagram.
'right' becomes 'r' (common abbreviation).
'denim' with letters rearranged gives 'minde'.
'minde'+'r'='MINDER'
(Other definitions for minder that I've seen before include "One looking after" , "baby sitter?" , "Bodyguard (colloq.)" , "One who looks after (someone or something)" , "One who objects" .)