Sloshed son in ladies' legwear (6)
I believe the answer is:
tights
'ladies' legwear' is the definition.
I can't tell whether this defines the answer.
'sloshed son' is the wordplay.
'sloshed' becomes 'tight' (synonyms).
'son' becomes 's' (genealogical abbreviation for son).
'tight'+'s'='TIGHTS'
'in' is the link.
Can you help me to learn more?
(Other definitions for tights that I've seen before include "Hose coverings from waist to feet" , "layer of clothing" , "Close-fitting female garment" , "Pantihose" , "Leg-wear for women" .)