Say nothing about preference for nagging (8)
I believe the answer is:
shrewish
'nagging' is the definition.
(synonyms)
'say nothing about preference' is the wordplay.
'say nothing' becomes 'sh' (I've seen this in other clues).
'about' becomes 're' (regarding).
'preference' becomes 'wish' (wish is a kind of preference).
'sh'+'re'+'wish'='SHREWISH'
'for' acts as a link.
(Other definitions for shrewish that I've seen before include "Sharp-tongued" , "Like Kate" , "inclined to nag?" , "(Of a woman) nagging" .)