Energetic guy from Soho many dearly recalled (6)
I believe the answer is:
dynamo
'energetic guy' is the definition.
'from soho many dearly recalled' is the wordplay.
'from' indicates a hidden word.
'recalled' says the letters should be written backwards.
'omanyd' is hidden in the letters of 'soho many dearly'.
'omanyd' back-to-front is 'DYNAMO'.
(Other definitions for dynamo that I've seen before include "Electric current producer" , "Energetic person (colloq.)" , "Electricity generator: all-action type" , "Machine" , "Juice supplier" .)