Send it to part of Fremantle (5)
I believe the answer is:
remit
'send' is the definition.
(I've seen this in another clue)
'it to part of fremantle' is the wordplay.
'to' means one lot of letters go next to another (I've seen this in other clues).
'part of fremantle' becomes 'rem' (I can't justify this - if you can you should give a lot more credence to this answer).
'it' put after 'rem' is 'REMIT'.
Can you help me to learn more?
(Other definitions for remit that I've seen before include "Transfer (money)" , "Orders" , "Send - scope of one's duties" , "Scope - send money" , "The - Papers (M. Amis)" .)