Mexican tortilla (7)
I believe the answer is:
burrito
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">mexican tortilla</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(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" .)