Something to make at the party (5)

I believe the answer is:
merry
'party' is the definition.
Both the answer and definition are adjectives. Maybe there's an association between them I don't understand?
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for merry that I've seen before include "Cheerful, lively" , "Convivial" , "Jovial" , "Mistresses Page and Ford of Windsor" , "Joyous; tipsy (colloq.)" .)
