Floor finisher (5)
I believe the answer is:
tiler
'floor finisher' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for tiler that I've seen before include "Worker who lays small squares" , "Workman who fixes glazed rectangles in bathrooms" , "Roofer" , "High-level operator" , "Relit for tradesman" .)