Some collapsed in recess (4)

I believe the answer is:

apse

'recess' is the definition.
(apse is a kind of recess)

'some collapsed in' is the wordplay.
'some' indicates a hidden word (some parts of the word are used).
'APSE' is hidden in the letters of 'collapsed in'.

(Other definitions for apse that I've seen before include "Primate holds saint to be a" , "Semicircular recess in church" , "Recess with domed rof in a church" , "Large recess in church" , "Niche in church" .)

I've seen this clue in The Irish Times.

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