Wearing the blue turned up, duck? Figure-hugging! (6)
I believe the answer is:
slinky
'figure-hugging' is the definition.
(both can describe close-fitting clothing)
'wearing the blue turned up duck?' is the wordplay.
'wearing' indicates putting letters inside.
'the blue' becomes 'sky' (I've seen this in other clues).
'turned up' says the letters should be written backwards.
'duck?' becomes 'nil' (both can mean zero).
'nil' written backwards gives 'lin'.
'sky' placed around 'lin' is 'SLINKY'.
(Other definitions for slinky that I've seen before include "Sinuous and sexy" , "Slim and seductive - furtive" , "Sinuously graceful" , "Lean" , "Clinging" .)