Publicise new tramline for transport interchange (3,8)
I believe the answer is:
air terminal
'transport interchange' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'publicise new tramline' is the wordplay.
'publicise' becomes 'air' (airing is a kind of publicising).
'new' is an anagram indicator.
'tramline' is an anagram of 'terminal'.
'air'+'terminal'='AIR TERMINAL'
'for' is the link.
Can you help me to learn more?
(Other definitions for air terminal that I've seen before include "part of Heathrow" , "place to start journey" .)