Female right to wear Tony's tight underwear (1-6)
I believe the answer is:
y-fronts
'underwear' is the definition.
(I've seen this before)
'female right to wear tony's tight' is the subsidiary indication.
'female' becomes 'f' (abbreviation).
'right' becomes 'r' (common abbreviation).
'to wear' indicates putting letters inside.
'tight' indicates an anagram (tight can mean drunk).
'f'+'r'='fr'
'tonys' with letters rearranged gives 'yonts'.
'fr' placed within 'yonts' is 'yfronts'.
(Other definitions for y-fronts that I've seen before include "Male undergarment" , "Men's pants" , "Style of underpants" , "briefs" , "Men's underwear" .)