Irregular cops uneasy about organised raid (8)
I believe the answer is:
sporadic
'irregular' is the definition.
(similar in meaning)
'cops uneasy about organised raid' is the wordplay.
'uneasy' indicates an anagram.
'about' is an insertion indicator.
'organised' indicates an anagram.
'cops' with letters rearranged gives 'spoc'.
'raid' with letters rearranged gives 'radi'.
'spoc' going around 'radi' is 'SPORADIC'.
(Other definitions for sporadic that I've seen before include "Fitful, intermittent" , "Occurring here and there, scattered" , "infrequent" , "Occurring here and there, like picadors" , "Scattered - irregular" .)