Slow Tory laid out (8)
I believe the answer is:
dilatory
'slow' is the definition.
(similar in meaning)
'tory laid out' is the wordplay.
'out' indicates an anagram (out can mean wrong or inaccurate).
'tory'+'laid'='torylaid'
'torylaid' is an anagram of 'DILATORY'.
(Other definitions for dilatory that I've seen before include "Tending to delay" , "Causing delay" , "Delaying" , "Procrastinating" , "Slothful in idolatry" .)