Mexican tortilla (7)
I believe the answer is:
burrito
'mexican tortilla' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for burrito that I've seen before include "dish from Mexico" , "Filled tortilla dish" , "that's eaten in Mexico" , "Tortilla folded around a savoury filling" , "Mexican tortilla rolled round a savoury filling" .)