Girl and boy set for grilling? (9)
I believe the answer is:
marinated
'set for grilling?' is the definition.
The answer and definition are not the same part of speech. However, past participle verbs and adjectives can sometimes mean the same thing.
'girl and boy' is the wordplay.
'girl' becomes 'marina' ().
'and' means one lot of letters go next to another.
'boy' becomes 'ted' (short for Edward or Theodore).
'marina'+'ted'='MARINATED'
Can you help me to learn more?
(Other definitions for marinated that I've seen before include "Soaked food in a mixture before cooking" , "Named Rita (anag.)" .)