Chip with cheese (5)
I believe the answer is:
nacho
'chip with cheese' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for nacho that I've seen before include "Small piece of tortilla with a topping" , "Tortilla with cheese, etc" , "Mexican bite" , "Piece of tortilla served with sauce" , "Mexican dish" .)