German lot tormented in part (4)
I believe the answer is:
otto
'german' is the definition.
(I've seen this before)
'lot tormented in part' is the wordplay.
'in part' indicates a hidden word.
'OTTO' is hidden in the letters of 'lot tormented'.
(Other definitions for otto that I've seen before include "Palindromic German boy's name" , "perfume ingredient" , "Something oily" , "Italian for eight" , "Name of four German kings" .)