Posted all over the place by Stalin (6)
I believe the answer is:
despot
'stalin' is the definition.
The answer and definition can be both people as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'posted all over the place' is the wordplay.
'all over the place' indicates anagramming the letters.
'posted' is an anagram of 'DESPOT'.
'by' is the link.
Can you help me to learn more?
(Other definitions for despot that I've seen before include "Cruel and oppressive dictator" , "who treats others badly?" , "Possibly 4 [CZAR]" , "nasty ruler?" , "Arbitrary ruler" .)