Vim and vigor (3)
I believe the answer is:
pep
'vim and vigor' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for pep that I've seen before include "Palindrome for vitality or energy" , "Ginger; tax-free investment" , "Go" , "Vim and vitality" , "Energy, liveliness" .)