Drunk son’s inappropriate garment? (6)

I believe the answer is:

tights

'inappropriate garment?' is the definition.
'tights' can be an answer for 'garment?' (I've seen this before). I'm not sure about the 'inappropriate' bit.

'drunk son's' is the wordplay.
'drunk' becomes 'tight' (I've seen this before).
'tight'+'s'='TIGHTS'

(Other definitions for tights that I've seen before include "Hose worn by dancers" , "layer of clothing" , "Women's garments" , "Close-fitting female garment" , "Female leggings" .)

I've seen this clue in The Times.

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