Froth right below turning machine (6)
I believe the answer is:
lather
'froth' is the definition.
(I know that lather is a type of froth)
'right below turning machine' is the wordplay.
'right' becomes 'r' (common abbreviation).
'below' is a charade indicator (letters next to each other) (in a down clue, some letters go below others).
'turning machine' becomes 'lathe' (I've seen this before).
'r' put after 'lathe' is 'LATHER'.
(Other definitions for lather that I've seen before include "Whip up froth - tizzy" , "Soapy froth" , "agitation" , "stew" , "Shaving or soap foam" .)