"Friend" wants name included in credit (8)
I believe the answer is:
chandler
'friend' is the definition.
(character in the sitcom Friends)
'name included in credit' is the wordplay.
'name' becomes 'handle' (**).
'included in' means one lot of letters goes inside another.
'credit' becomes 'cr'.
'handle' inserted within 'cr' is 'CHANDLER'.
'wants' acts as a link.
(Other definitions for chandler that I've seen before include "Raymond ......, creator of private eye Philip Marlowe" , "Boat supplies seller" , "Dealer supplying shipment" , "Old storekeeper" , "Dealer in soap" .)