Devastating fellow said to be a farmer (6)
I believe the answer is:
attila
'devastating fellow' is the definition.
The definition and answer can be both people as well as being singular nouns.
Perhaps you can see a link between them that I can't see?
'said to be a farmer' is the wordplay.
I cannot really see how this works, but
'to' could be 'til' (I've seen this in another clue) and 'til' is located in the answer.
'a' is within the answer.
The remaining letters 'ta' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for attila that I've seen before include "The greatest Hun leader" , "Fifth-century king of the Huns" , "Warlike Hunnish king" , "Brutal Hunnish king" , "Hunnish ruler" .)