Crossword Genius

Our planes and ships in spacious place (4)

Ross

I believe the answer is:

barn

I'm a little stuck... Click here to teach me more about this clue!

'ships in spacious place' is the definition.
Although both the answer and definition are singular nouns, I don't see how they can define each other.

'our planes and' is the wordplay.
I cannot really see how this works, but
'and' could be 'n' (common abbreviation for 'and') and 'n' is found within the answer.
The remaining letters 'bar' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).

Can you help me to learn more?

(Other definitions for barn that I've seen before include "Outlying farm building" , "Large farm outbuilding" , "Big building" , "Bran stored in farm shed" , "Farm store" .)

I've seen this clue in The Sun.
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