Run campers ragged! (7)
I believe the answer is:
scamper
'run' is the definition.
(I know that scamper is a more specific form of the action run)
'campers ragged' is the wordplay.
'ragged' indicates anagramming the letters.
'campers' anagrammed gives 'SCAMPER'.
(Other definitions for scamper that I've seen before include "Run with quick light steps" , "Run around" , "Proceed hurriedly" , "Run quickly and lightly" , "Run about briskly" .)