Liveliness, spirit (4)
I believe the answer is:
brio
This clue is a double definition.
'liveliness' is the first definition.
(I've seen this before)
'spirit' is the second definition.
(I've seen this in another clue)
(Other definitions for brio that I've seen before include "'Liveliness, vivacity (4)'" , "Spiritedness" , "Vivacity - spirit" , "Animation (Italian)" , "(Of music) spirit" .)