Nice land-worker has left (8)
I believe the answer is:
pleasant
'nice' is the definition.
(associated in meaning)
'land-worker has left' is the wordplay.
'land worker' becomes 'peasant' (I've seen this before).
'has' means one lot of letters goes inside another.
'left' becomes 'L' (common abbreviation).
'peasant' going around 'l' is 'PLEASANT'.
(Other definitions for pleasant that I've seen before include "Attractive" , "Lovely" , "Affable, good-humoured" , "sweet?" , "Enjoyable, nice" .)