Crooned with young ladies in shades (10)
I believe the answer is:
sunglasses
'shades' is the definition.
(synonyms)
'crooned with young ladies' is the wordplay.
'crooned' becomes 'sung' (I've seen this in another clue).
'with' is a charade indicator (letters next to each other).
'young ladies' becomes 'lasses' (lass is a kind of young lady).
'sung'+'lasses'='SUNGLASSES'
'in' is the link.
(Other definitions for sunglasses that I've seen before include "summer wear" , "protection for pupils" , "These offer a sight more protection" , "They relieve effect of glaring" , "Shades" .)