Deeply respect royal always having energy (6)
I believe the answer is:
revere
'deeply respect' is the definition.
(I've seen this before)
'royal always having energy' is the wordplay.
'royal' becomes 'r' (common abbreviation e.g. RM - Royal Marine).
'always' becomes 'ever' (synonyms).
'having' says to put letters next to each other.
'energy' becomes 'e' (physics symbol as in E=mc2).
'r'+'ever'+'e'='REVERE'
(Other definitions for revere that I've seen before include "Idolise, venerate" , "Venerate - American hero" , "Look up to - American patriot, d. 1818" , "Hold in high respect" , "Honour greatly" .)