Crossword Genius

Cheerful star going to New York (5)

Ross

I believe the answer is:

'cheerful' is the definition.
(similar in meaning)

'star going to new york' is the wordplay.
'star' becomes 'sun' (Sun is an example).
'going to' is a charade indicator (letters next to each other).
'new york' becomes 'ny'.
'sun'+'ny'='SUNNY'

(Other definitions for sunny that I've seen before include "Bright and cheerful", "Bright and warm", "Unclouded - cheerful", "Cheerful; fine (weather)", "(Of a person's disposition) always positive".)