Jovial (5)
I believe the answer is:
jolly
'jovial' is the definition.
(I know that jovial can be written as jolly)
This is the entire clue.
(Other definitions for jolly that I've seen before include "Very pleasurable" , "' - - boating weather' (song)" , "Good-humoured, cheerful" , "Very - jovial" , "Merry, festive" .)