This is a hidden reversal - look for consecutive letters within the clue that spell out the answer when read backwards.
The phrase 'served up' indicates you need to reverse some hidden letters. Look for six consecutive letters within 'foOD REVOltingly' that spell the answer when reversed.
Answer: OVERDO | Hidden reversal - taking the consecutive letters OD REVO from 'foOD REVOltingly' and reversing them (served up) gives OVERDO, which means to ham (overact).