More running around for every ruler (7)
I believe the answer is:
emperor
'ruler' is the definition.
(I know that Emperor is a type of monarch)
'more running around for every' is the wordplay.
'running' indicates anagramming the letters.
'around' is an insertion indicator.
'for every' becomes 'per' ('per' means 'for each' or 'for every').
'more' is an anagram of 'emor'.
'emor' enclosing 'per' is 'EMPEROR'.
(Other definitions for emperor that I've seen before include "Absolute ruler" , "Purple --; -- penguin" , "eg Nero" , "Largest type of penguin" , "Say, Nero" .)