Carol had yummy Mexican nachos for starters (4)
I believe the answer is:
hymn
'carol' is the definition.
(I've seen this before)
'had yummy mexican nachos for starters' is the wordplay.
'for starters' indicates taking the first letters.
The initial letters of 'had yummy mexican nachos' is 'HYMN'.
(Other definitions for hymn that I've seen before include "religious composition" , "Special song" , "Religious song of praise" , "Song of worship" , "Song sung in church" .)