Strewn nuts deter cats (9)
I believe the answer is:
scattered
'strewn' is the definition.
(strewn means scattered around)
'nuts deter cats' is the wordplay.
'nuts' indicates an anagram (nuts can mean crazy).
'deter'+'cats'='detercats'
'detercats' is an anagram of 'SCATTERED'.
(Other definitions for scattered that I've seen before include "Broadcast" , "Occasional" , "Strewn, widely dispersed" , "Thrown in various directions" , "Distributed at random" .)