Televise small, trendy flying craft (7)
I believe the answer is:
airship
'flying craft' is the definition.
(I've seen this before)
'televise small trendy' is the wordplay.
'televise' becomes 'air' (I've seen this in another clue).
'small' becomes 's' (abbreviation - e.g. clothes size).
'trendy' becomes 'hip' (I've seen this before).
'air'+'s'+'hip'='AIRSHIP'
(Other definitions for airship that I've seen before include "something hovering above?" , "Blimp" , "Gas-filled craft" , "Lighter-than-air craft" , "Flying machine" .)