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