Tardy, getting hot, turning machine (5)
I believe the answer is:
lathe
'turning machine' is the definition.
(I've seen this before)
'tardy getting hot' is the wordplay.
'tardy' becomes 'late' (synonyms).
'getting' indicates putting letters inside.
'hot' becomes 'h' (abbreviation eg on taps).
'late' placed around 'h' is 'LATHE'.
(Other definitions for lathe that I've seen before include "Rotating machine tool" , "craftsman's machine" , "Wood-turning machine" , "8 [TURNER]" , "Revolver" .)