Portion of dinosaur eaten? Fancy! (7)
I believe the answer is:
aureate
'fancy' is the definition.
(similar in meaning)
'portion of dinosaur eaten?' is the wordplay.
'portion of' indicates the answer is hidden within the clue.
'AUREATE' is hidden in the letters of 'dinosaur eaten'.
(Other definitions for aureate that I've seen before include "Flowery (speech or prose)" , "Golden, brilliant" , "Gilded, elaborate" .)