Ace troupe's represented something studied by astronomers (5,5)

I believe the answer is:

outer space

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'something studied by astronomers' is the definition.
I can't tell whether this defines the answer.

'ace troupe's represented' is the wordplay.
'represented' indicates anagramming the letters.
'ace'+'troupes'='acetroupes'
'acetroupes' with letters rearranged gives 'OUTER SPACE'.

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(Other definitions for outer space that I've seen before include "'place lacking atmosphere'" , "remote region" , "Region beyond the earth's atmosphere" .)

I've seen this clue in The Guardian.

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