One supervising in street with energy — draw back (7)
I believe the answer is:
steward
'one supervising' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
'street with energy draw back' is the wordplay.
'street' becomes 'st' (abbreviation).
'with' means one lot of letters go next to another.
'energy' becomes 'e' (physics symbol as in E=mc2).
'back' is a reversal indicator.
'draw' in reverse letter order is 'ward'.
'st'+'e'+'ward'='STEWARD'
'in' is the link.
Can you help me to learn more?
(Other definitions for steward that I've seen before include "Shipboard attendant" , "Racing official" , "Attendant on ship - race official" , "Crowd-control official" , "Crowd supervisor" .)