Draw to the left with a bit of a tug (3)
I believe the answer is:
lug
'a tug' is the definition.
(I know that tug can be written as lug)
'draw to the left with a bit' is the wordplay.
I cannot really understand how this works, but
'left' could be 'l' (common abbreviation) and 'l' is found in the answer.
The remaining letters 'ug' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
'of' acts as a link.
Can you help me to learn more?
(Other definitions for lug that I've seen before include "Drag, haul" , "Drag with effort; ear" , "Drag heavily" , "A slangy ear" , "Haul; ear (slang)" .)