Implements used in cunningly slick ways (7)
I believe the answer is:
sickles
'implements' is the definition.
(sickle is a kind of implement)
'cunningly slick ways' is the wordplay.
'cunningly' is an anagram indicator.
'ways' becomes 'es' (east and south - two directions).
'slick' with letters rearranged gives 'sickl'.
'sickl'+'es'='SICKLES'
'used in' acts as a link.
(Other definitions for sickles that I've seen before include "Curved short-handled blades" , "cutting implements!" .)