Large striped felines (6)
I believe the answer is:
tigers
'large striped felines' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for tigers that I've seen before include "Sir, get to the animals" , "Large striped cats" , "Big striped cats poetically burning bright" , "Striped beasts" , "Large forest felines" .)