Sprightly girl out for a day of celebration (6)
I believe the answer is:
lively
'sprightly' is the definition.
(synonyms)
'girl out for a day of celebration' is the wordplay.
I cannot really see how this works, but
'girl' could be 'liv' and 'liv' is located in the answer.
The remaining letters 'ely' is a valid word which might be clued in a way I don't understand.
This may be the basis of clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for lively that I've seen before include "Con brio" , "Animated" , "Vivacious" , "Full of fun" , "Full of zest and energy" .)