A paper under discussion (2,5)

I believe the answer is:

at issue

'under discussion' is the definition.
(at issue means currently being discussed)

'a paper' is the wordplay.
'paper' becomes 'tissue' (tissue is a kind of paper).
'a'+'tissue'='AT ISSUE'

(Other definitions for at issue that I've seen before include "In question, under discussion" , "under debate" , "Questionable" , "Being discussed or disputed" , "in dispute" .)

I've seen this clue in The Hindu.

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