Occasions second issue to be raised (5)
I believe the answer is:
times
'occasions' is the definition.
(I've seen this before)
'second issue to be raised' is the wordplay.
'second' becomes 's' (common abbreviation).
'issue' becomes 'emit' (both can mean to give out or radiate).
'to be raised' is a reversal indicator (going up in a down clue).
's'+'emit'='semit'
'semit' written backwards gives 'TIMES'.
(Other definitions for times that I've seen before include "See 10" , "measures the length of something" , "See 1" , "- - they are a-changin'" , "Occasions; multiplied by" .)