Polish up drafts for either of two US novelists (9)

I believe the answer is:

burroughs

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'either of two us novelists' is the definition.
I can't tell whether this definition defines the answer.

'polish up drafts' is the wordplay.
'polish' becomes 'rub' (polish meaning rub to make shiny).
'up' says the letters should be written backwards (in down clue: letters go upwards).
'drafts' becomes 'roughs' ('rough' can be a synonym of 'draft').
'rub' backwards is 'bur'.
'bur'+'roughs'='BURROUGHS'

'for' is the link.

Can you help me to learn more?

(Other definitions for burroughs that I've seen before include "Edgar Rice -, Tarzan author" , "See 1" , "American writer" , "US writer" , "Edgar Rice -, Tarzan creator" .)

I've seen this clue in The Times.

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