Tex-Mex chip (5)
I believe the answer is:
nacho
'tex-mex chip' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for nacho that I've seen before include "Something consumed" , "Mex. corn chip" , "Small piece of tortilla with a topping" , "Mexican bite" , "Mexican food item" .)