Crossword Genius

Go back again with a terrible fellow (4)

Ross

I believe the answer is:

ogre

I'm a little stuck... Click here to teach me more about this clue!

'a terrible fellow' is the definition.
The definition and answer can be both people as well as being singular nouns.
Maybe you can see an association between them that I can't see?

'go back again' is the wordplay.
'back' shows that the letters should be reversed in order.
'again' becomes 're' (prefix meaning 'again').
'go' back-to-front is 'og'.
'og'+'re'='OGRE'

'with' is the link.

Can you help me to learn more?

(Other definitions for ogre that I've seen before include "Monster, troll" , "'Demon, fiend (4)'" , "ugly one" , "Grim(m) beast?" , "Cruel fairytale giant" .)

I've seen this clue in the Evening Standard.
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