Is shown on television consuming wine designed specifically for high-flyers (8)
I believe the answer is:
airports
'consuming wine designed specifically for high-flyers' is the definition.
I can't tell whether this definition defines the answer.
'is shown on television' is the wordplay.
'is shown' becomes 'airs' (I've seen this in another clue).
'on' indicates putting letters inside (as in clothing 'on' a person).
'television' becomes 'port' (I can't explain this - if you can you should believe this answer much more).
'airs' placed around 'port' is 'AIRPORTS'.
Can you help me to learn more?
(Other definitions for airports that I've seen before include "Is parrot about to fly from these?" , "JFK, Heathrow" , "Flight transport depots" , "Aerodromes" , "Pearson and O'Hare, say" .)