Withdraws from circulation, but drops by (5,2)
I believe the answer is:
calls in
'withdraws' is the definition.
('call in' can be a synonym of 'withdraw')
'from circulation but drops by' is the wordplay.
I cannot really understand how this works, but
'from' could be 'in' (I've seen this in other clues) and 'in' is found within the answer.
'drops by' could be 'calls' (I've seen this in another clue) and 'calls' is found within the answer.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for calls in that I've seen before include "Drops by" , "speaks without entering?" , "Visits" .)