Reasonable ticket price announced (4)
I believe the answer is:
fair
'reasonable' is the definition.
(synonyms)
'ticket price announced' is the wordplay.
'ticket price' becomes 'fare' (eg a bus fare).
'announced' indicates a 'sounds like' (homophone) clue.
'fare' is a homophone of 'FAIR'.
(Other definitions for fair that I've seen before include "Market for the sale of produce" , "Just; gala" , "Light; entertainment" , "gorgeous" , "here for the ride?" .)