Bit of body ink, for short (3)
I believe the answer is:
tat
'bit of body ink for short' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for tat that I've seen before include "Junk; make lace" , "Worthless items" , "Bric-a-brac" , "Shoddy stuff (colloq.)" , "trashy clothing" .)