Quick drawing, not small, shows craft (5)
I believe the answer is:
ketch
'craft' is the definition.
(ketch is a kind of craft)
'quick drawing not small' is the wordplay.
'quick drawing' becomes 'sketch' (I've seen this in another clue).
'not' suggests deleting specific letters.
'small' becomes 's' (abbreviation - e.g. clothes size).
'sketch' with 's' taken out is 'KETCH'.
'shows' is the link.
(Other definitions for ketch that I've seen before include "The craft" , "2-masted boat" , "Two-masted sailing boat" , "Small two-master sailing vessel" , "Two-masted sailing vessel" .)