Passionate feeling, zeal (7)
I believe the answer is:
fervour
I believe this is a double definition.
'passionate feeling' is the first definition.
(I've seen this before)
'zeal' is the second definition.
(I've seen this before)
(Other definitions for fervour that I've seen before include "Enthusiasm - excitement" , "Ardent intensity" , "Passionate feeling" , "Heated feeling" , "Vehemence" .)