Pouring liquid in a circle (2-5)

I believe the answer is:

in-group

'a circle' is the definition.
(in-group is a kind of circle)

'pouring liquid' is the wordplay.
'liquid' is an anagram indicator.
'pouring' with letters rearranged gives 'IN-GROUP'.

'in' acts as a link.

(Another definition for in-group that I've seen is " Exclusive set".)

I've seen this clue in The Sunday Times.

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