Exercises taking power and energy (3)
I believe the answer is:
pep
'energy' is the definition.
(personal energy, vim)
'exercises taking power' is the wordplay.
'exercises' becomes 'pe' (Physical Education).
'taking' is a charade indicator (letters next to each other).
'power' becomes 'p' (symbol in physics).
'pe'+'p'='PEP'
'and' acts as a link.
(Other definitions for pep that I've seen before include "Palindrome for vitality or energy" , "Energy, zip" , "Energy, liveliness" , "Get-up-and-go" , "Palindrome for vigour" .)