Adjustment of leg in my revealing garment (8)
I believe the answer is:
negligee
'garment' is the definition.
(negligee is a kind of garment)
'adjustment of leg in my' is the wordplay.
'adjustment of' is an anagram indicator (I've seen this in other clues).
'my' becomes 'gee' (I've seen this before).
'leg'+'in'='legin'
'legin' with letters rearranged gives 'negli'.
'negli'+'gee'='NEGLIGEE'
'revealing' is the link.
(Other definitions for negligee that I've seen before include "Ladies' light dressing gown" , "Flimsy type of dressing gown" , "lacy garment" , "Loose flimsy garment" , "Woman's flimsy nightgown" .)