Be a little shy? (3)
I believe the answer is:
owe
'be a little shy?' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for owe that I've seen before include "Bear" , "Have a duty to pay" , "have favours to return" , "Be in debt - woe is me" , "Have to thank" .)