Shows trendy method of transport (7)
I believe the answer is:
airship
'method of transport' is the definition.
'shows trendy' is the wordplay.
'shows' becomes 'airs'.
'trendy' becomes 'hip' (I've seen this in other clues).
'airs'+'hip'='AIRSHIP'
(Other definitions for airship that I've seen before include "Lighter-than-air craft" , "something hovering above?" , "need approval from CAA" , "flying craft" , "High-flyer" .)