Crossword Genius

Field event one's put up on review (10)

Ross

I believe the answer is:

discussion

'review' is the definition.
(thesaurus)

'field event one's put up on' is the wordplay.
'field event' becomes 'discus' (discus is a kind of field event).
'one's' becomes 'is' (roman numeral).
'put up' is a reversal indicator.
'is' written backwards gives 'si'.
'discus'+'si'+'on'='DISCUSSION'

(Other definitions for discussion that I've seen before include "argument" , "when hot air's emitted?" , "Debate, conversation" .)

I've seen this clue in The Independent.
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