Some rutile. Ready for roofing worker (5)
I believe the answer is:
tiler
'roofing worker' is the definition.
(I've seen this in another clue)
'some rutile ready for' is the wordplay.
'some' indicates a hidden word (some parts of the word are used).
'TILER' can be found hidden inside 'rutile ready for'.
(Other definitions for tiler that I've seen before include "Masons' doorkeeper" , "Roofer" , "Working man" , "High-level operator" , "Tradesman who covers roofs or bathroom walls with rectangular materials" .)