Series from BBC Horizon that has Granada scoffing? (7)
I believe the answer is:
chorizo
'that has granada scoffing?' is the definition.
(Spanish sausage - Granada is in Spain)
'series from bbc horizon' is the wordplay.
'series' says the answer is hidden in the clue (I've seen 'series of' mean this (a series of letters from the clue)).
'CHORIZO' is hidden within 'from bbc horizon'.
(Other definitions for chorizo that I've seen before include "Highly-seasoned sausage" , "Spicy Spanish pork sausage" , "food from the deli" , "Hot sausage" , "Highly seasoned sausage" .)