Space for sport and on board romancing (9)

I believe the answer is:

courtship

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'space' is the definition.
The answer and definition can be both related to communication as well as being singular nouns.
Maybe there's a link between them I don't understand?

I can't explain the remainder of the clue.

Can you help me to learn more?

(Other definitions for courtship that I've seen before include "pursuit" , "Wooing of a mate" , "activity pursued by lover" , "Period of wooing" , "In prosecution of suit" .)

I've seen this clue in the Sydney Morning Herald.

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