Dedicate energy to volume, edited after reflecting (6)
I believe the answer is:
devote
'dedicate' is the definition.
(I know that dedicate can be written as devote)
'energy to volume edited after reflecting' is the wordplay.
'energy' becomes 'e' (physics symbol as in E=mc2).
'volume' becomes 'v' (abbreviation for volume in book titles).
'edited' becomes 'ed' (publishing abbreviation).
'after reflecting' is a reversal indicator.
'e'+'to'+'v'+'ed'='etoved'
'etoved' in reverse letter order is 'DEVOTE'.
(Other definitions for devote that I've seen before include "Dedicate (oneself)" , "Set apart" , "Appropriate to" , "Give wholly to" , "Use or dedicate for particular purpose" .)