Spaniels running about, not hurting (8)
I believe the answer is:
painless
'not hurting' is the definition.
(I've seen this before)
'spaniels running' is the wordplay.
'running' is an anagram indicator (the letters run around to different places).
'spaniels' is an anagram of 'PAINLESS'.
'about' acts as a link.
(Other definitions for painless that I've seen before include "Easy - without suffering" , "Trouble-free" , "Undemanding" , "Not causing discomfort" , "Trouble free" .)