Tune left in point of departure (7)
I believe the answer is:
airport
'point of departure' 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?
'tune left' is the wordplay.
'tune' becomes 'air' (air can mean a piece of music).
'left' becomes 'port' (left side of a ship - opposite of starboard).
'air'+'port'='AIRPORT'
'in' acts as a link.
Can you help me to learn more?
(Other definitions for airport that I've seen before include "Charles de Gaulle, for instance" , "O'Hare or Kennedy, say" , "place with lounges for travellers?" , "passenger terminal" , "Terminal for planes" .)