Type of energy supply also run (5)
I believe the answer is:
solar
'type of energy' is the definition.
'supply also run' is the wordplay.
'supply' indicates anagramming the letters ('supply' is an adverb here, so in a 'supple' way).
'run' becomes 'r' (cricket abbreviation).
'also' anagrammed gives 'sola'.
'sola'+'r'='SOLAR'
(Other definitions for solar that I've seen before include "of heavenly body" , "room" , "sunny?" , "Relating to our star" , "Particular star's" .)