Can good English provide a hint? (5)
I believe the answer is:
tinge
'a hint?' is the definition.
(thesaurus)
'can good english' is the wordplay.
'can' becomes 'tin' ('tin' can be a synonym of 'can').
'good' becomes 'g' (abbreviation).
'english' becomes 'e' (abbreviation).
'tin'+'g'+'e'='TINGE'
'provide' acts as a link.
(Other definitions for tinge that I've seen before include "A shade or a nuance" , "Subdued colour" , "Suffuse" , "Touch (of colour?)" , "Small quantity of (differing) colour" .)