Turner's rubbish, getting nothing right (5)
I believe the answer is:
rotor
'turner's' is the definition.
(something that turns)
'rubbish getting nothing right' is the wordplay.
'rubbish' becomes 'rot' (I've seen this before).
'getting' is a charade indicator (letters next to each other).
'nothing' becomes 'o' (looks like zero - 0).
'right' becomes 'r' (common abbreviation).
'rot'+'o'+'r'='ROTOR'
(Other definitions for rotor that I've seen before include "I go round" , "Mechanical part that revolves, an acronym" , "Turning part of machine - a palindrome" , "Revolving aerofoil" , "Dynamo part" .)