Crossword Genius

Briefly study issue with some common sense (6)

Ross

I believe the answer is:

reason

'some common sense' is the definition.
(thesaurus)

'briefly study issue' is the wordplay.
'briefly' means to remove the last letter.
'study' becomes 'read' ('read' can be a synonym of 'study').
'issue' becomes 'son' (issue can mean someone's offspring).
'read' with its final letter taken off is 'rea'.
'rea'+'son'='REASON'

'with' is the link.

(Other definitions for reason that I've seen before include "Purpose" , "brain operations" , "Justification or motive" , "Sanity, the ability to think" , "Justification needed" .)

I've seen this clue in the Irish Times (Crosaire) and the Irish Times.
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