Sets up last shot for a couple of fathers in commercial (6)
I believe the answer is:
advert
'commercial' is the definition.
(I've seen this before)
'sets up last shot for a couple of fathers' is the wordplay.
'a couple of fathers' can mean two replacements for 'father'.
'sets up' says the letters should be written in reverse.
'last shot for' becomes 't' (I can't explain this - if you can you should give a lot more credence to this answer).
'father' becomes 'rev' (I've seen this in other clues).
'father' becomes 'da' (I've seen this in other clues).
't'+'rev'+'da'='trevda'
'trevda' reversed gives 'ADVERT'.
'in' acts as a link.
Can you help me to learn more?
(Other definitions for advert that I've seen before include "Refer or allude" , "Sales publicity" , "Counsel" , "Commercial notice" , "Publicity announcement" .)