Energy, force (5)
I believe the answer is:
oomph
(Other definitions for oomph that I've seen before include "Shows excitement aplenty" , "vital quality" , "Get-up-and-go" , "Informal energy or enthusiasm, usually in a girl" , "15 [SEXINESS]" .)
I believe the answer is:
oomph
(Other definitions for oomph that I've seen before include "Shows excitement aplenty" , "vital quality" , "Get-up-and-go" , "Informal energy or enthusiasm, usually in a girl" , "15 [SEXINESS]" .)