Impressed by Turkey in draw (6)
I believe the answer is:
struck
'impressed' is the definition.
('strike' can be a synonym of 'impress')
'turkey in draw' is the wordplay.
'turkey' becomes 'tr' (abbreviation eg in internet addresses).
'in' indicates putting letters inside.
'draw' becomes 'suck' (sucking is a kind of drawing).
'tr' put into 'suck' is 'STRUCK'.
'by' acts as a link.
(Other definitions for struck that I've seen before include "Hit; stopped work" , "Female relative" , "Made to pause by something unexpected" , "Collided" , "Delivered a sharp blow" .)