Draw this last sailing boat? (6)
I believe the answer is:
sketch
'draw' is the definition.
(I know that sketch is a type of draw)
'this last sailing boat?' is the wordplay.
'last' suggests the final letters.
'sailing boat?' becomes 'ketch' (type of sailing boat).
The last letter of 'this' is 's'.
's'+'ketch'='SKETCH'
(Other definitions for sketch that I've seen before include "Portrait" , "Short comic routine" , "Basic drawing" , "draft" , "Slow of understanding" .)