Slow worker at court after rule broken (9)
I believe the answer is:
reluctant
'slow' is the definition.
(I've seen this before)
'worker at court after rule broken' is the wordplay.
'worker' becomes 'ant' (worker is a type of ant).
'at' says to put letters next to each other (I've seen this in other clues).
'court' becomes 'ct' (abbreviation used in road names).
'after' is a charade indicator (letters next to each other).
'broken' is an anagram indicator.
'rule' with letters rearranged gives 'relu'.
'ant' after 'ct' is 'ctant'.
'ctant' put after 'relu' is 'RELUCTANT'.
(Other definitions for reluctant that I've seen before include "not being willing" , "Unwilling, hesitant" , "Unwilling to do something" , "Indisposed" , "Unwilling, disinclined" .)