North American company importing hot food from Mexico (5)
I believe the answer is:
nacho
'food from mexico' is the definition.
(Mexican tortilla snack)
'north american company importing hot' is the wordplay.
'north american' becomes 'na'.
'company' becomes 'co' (abbreviation).
'importing' is an insertion indicator.
'hot' becomes 'h' (abbreviation eg on taps).
'co' placed around 'h' is 'cho'.
'na'+'cho'='NACHO'
(Other definitions for nacho that I've seen before include "Mexican dish" , "Tortilla chip topped with cheese and spices" , "Tortilla crisp" , "Mex. corn chip" , "chip production line unit" .)