Reaches old pavilions (7)

I believe the answer is:

extents

'reaches' is the definition.
(I've seen this in another clue)

'old pavilions' is the wordplay.
'old' becomes 'ex' (prefix meaning former or onetime).
'pavilions' becomes 'tents' (I've seen this in another clue).
'ex'+'tents'='EXTENTS'

(Another definition for extents that I've seen is " areas".)

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

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