Gives up seat with cab I'd ordered (9)
I believe the answer is:
abdicates
'gives up' is the definition.
(abdicating is a kind of giving up)
'seat with cab i'd ordered' is the wordplay.
'with' means one lot of letters go next to another.
'ordered' indicates anagramming the letters.
'seat'+'cab'+'id'='seatcabid'
'seatcabid' with letters rearranged gives 'ABDICATES'.
(Other definitions for abdicates that I've seen before include "Gives up an office" , "Retires" .)