Unfamiliar part of meal I enjoyed (5)
I believe the answer is:
alien
'unfamiliar' is the definition.
(I've seen this in another clue)
'part of meal i enjoyed' is the wordplay.
'part of' indicates the answer is hidden within the clue.
'ALIEN' is hidden within 'meal i enjoyed'.
(Other definitions for alien that I've seen before include "ET" , "Otherworldly" , "Foreigner, outsider" , "Stranger" , "24a [ESTRANGE]" .)