Purchased in branch, taking little time (6)
I believe the answer is:
bought
'purchased' is the definition.
('buy' can be a synonym of 'purchase')
'branch taking little time' is the wordplay.
I cannot really see how this works, but
'branch' could be 'bough' (bough is a kind of branch) and 'bough' is found in the answer.
'time' could be 't' (abbreviation) and 't' is located in the answer.
No letters remain.
This explanation may well be incorrect...
'in' is the link.
Can you help me to learn more?
(Other definitions for bought that I've seen before include "Puchased" , "Obtained" , "Purchased" , "paid for" .)