Bit of ink (3)
I believe the answer is:
tat
'bit of ink' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for tat that I've seen before include "Make lace; tasteless stuff" , "Tawdry stuff" , "Cheap junk" , "Junk; make lace" , "What you get for tit" .)