Issue raised by work alarm, possibly (9)
I believe the answer is:
timepiece
'alarm possibly' is the definition.
(I know that alarm clock is a type of clock)
'issue raised by work' is the wordplay.
'issue' becomes 'emit' (both can mean to give out or radiate).
'raised by' says the letters should be written in reverse.
'work' becomes 'piece' (eg a work of art is a piece).
'emit' in reverse letter order is 'time'.
'time'+'piece'='TIMEPIECE'
(Other definitions for timepiece that I've seen before include "Watch, say" , "hunter, perhaps" , "Clock, for example" , "Chronometer" , "Maybe watch" .)