The Office of the President of the United States of America has nothing against Alabama? (4)
I believe the answer is:
oval
'the office of the president' is the definition.
(I've seen this in another clue)
'nothing against alabama?' is the wordplay.
'nothing' becomes 'O' (O resembles 0).
'against' becomes 'v' (abbreviation for 'versus').
'alabama?' becomes 'al'.
'o'+'v'+'al'='OVAL'
'of the united states of america has' is the link.
I am not very happy about this link. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for oval that I've seen before include "Easter gift" , "Courageous" , "34 [CRICKETER] 's domain" , "Egg shape - Kennington test match venue" , "Ellipsoidal" .)