Unmethodical toys ruled out (9)
I believe the answer is:
desultory
'unmethodical' is the definition.
(I've seen this before)
'toys ruled out' is the wordplay.
'out' is an anagram indicator (out can mean wrong or inaccurate).
'toys'+'ruled'='toysruled'
'toysruled' anagrammed gives 'DESULTORY'.
(Other definitions for desultory that I've seen before include "Rambling" , "Lacking a plan, purpose, or enthusiasm" , "With neither plan nor purpose" , "Aimless" , "Unenthusiastic" .)