A particular time, possibly (4)

I believe the answer is:

item

'a particular' is the definition.
('item' can be a synonym of 'particular')

'time possibly' is the wordplay.
'possibly' is an anagram indicator.
'time' anagrammed gives 'ITEM'.

(Other definitions for item that I've seen before include "Separate article" , "Object in a list" , "Single unit" , "Romantic couple" , "Feature" .)

I've seen this clue in the Evening Standard.

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