A paper in dispute (2,5)

I believe the answer is:

at issue

'in dispute' is the definition.
('at issue' can be a synonym of 'in dispute')

'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 "under debate" , "in dispute" , "In question, under discussion" , "Being discussed or disputed" , "Questionable" .)

I've seen this clue in The Times.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.