Foil wrapping tail of bird in TV promotion (6)
I believe the answer is:
advert
'tv promotion' is the definition.
'advert' can be an answer for 'promotion' (advert is a kind of promotion). I am not certain of the 'tv' bit.
'foil wrapping tail of bird' is the wordplay.
'foil' becomes 'avert' (I've seen this in another clue).
'wrapping' indicates putting letters inside.
'tail of' says to take the final letters.
The final letter of 'bird' is 'd'.
'avert' placed around 'd' is 'ADVERT'.
'in' is the link.
Can you help me to learn more?
(Other definitions for advert that I've seen before include "Commercial (abbr)" , "Refer to the red vat" , "Counsel" , "Make reference or call attention to" , "public announcement" .)