Abandons a slovenly slave out East! (6)
I believe the answer is:
leaves
'abandons' is the definition.
(I've seen this before)
'a slovenly slave out east' is the wordplay.
'a slovenly' indicates anagramming the letters.
'out' means one lot of letters goes inside another.
'east' becomes 'e' (abbreviation).
'slave' with letters rearranged gives 'leavs'.
'leavs' going around 'e' is 'LEAVES'.
(Other definitions for leaves that I've seen before include "Organs of photosynthesis" , "See 14" , "Foliage - goes away" , "Pulls out < sheets" , "Departs with book pages?" .)