Bright and cheery (5)
I believe the answer is:
sunny
'bright and cheery' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for sunny that I've seen before include "Genial, cheerful" , "cheerful sound" , "Cheerful - cloudless" , "Bright and cheerful" , "(Of a person's disposition) always positive" .)