Done by running further (6)
I believe the answer is:
beyond
'further' is the definition.
(thesaurus)
'done by running' is the wordplay.
'running' indicates anagramming the letters.
'done'+'by'='doneby'
'doneby' with letters rearranged gives 'BEYOND'.
(Other definitions for beyond that I've seen before include "Outside the range of" , "Further than or outside the scope of" , "On the farther side - in addition" , "Farther than or outside" , "Better than" .)