Meat pie and fantastic chips on trays (7,5)
I believe the answer is:
cornish pasty
'meat pie' is the definition.
(Cornish pasty is an example)
'fantastic chips on trays' is the wordplay.
'fantastic' is an anagram indicator (a fantastic or improbable ordering of the letters).
'chips'+'on'+'trays'='chipsontrays'
'chipsontrays' anagrammed gives 'CORNISH PASTY'.
'and' is the link.
(Other definitions for cornish pasty that I've seen before include "local delicacy" , "Regional dish" , "West Country speciality food" , "West Country fare" , "West Country dish" .)