Can not quite get the shade (5)
I believe the answer is:
tinge
'the shade' is the definition.
(tinge is a kind of shade)
'can not quite get' is the wordplay.
'can' becomes 'tin' ('tin' can be a synonym of 'can').
'not quite' means to remove the last letter.
'get' with its final letter taken off is 'ge'.
'tin'+'ge'='TINGE'
(Other definitions for tinge that I've seen before include "Smattering" , "Get in (anag)" , "Slight tint" , "A slight shade of colour" , "Suffuse" .)