Room left for launch zone (9)

I believe the answer is:
spaceport
'launch zone' is the definition.
The definition suggests a singular noun which matches the answer.
'room left' is the wordplay.
'room' becomes 'space' (room can mean space or an empty area).
'left' becomes 'port' (left side of a ship - opposite of starboard).
'space'+'port'='SPACEPORT'
'for' acts as a link.
Can you help me to learn more?
(Another definition for spaceport that I've seen is " Cape Canaveral".)
I've seen this clue in The Times.
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