Perhaps paint bottom gold and black (6)

I believe the answer is:

bedaub

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'perhaps paint' is the definition.
'bedaub' can be an answer for 'paint' (thesaurus). I'm unsure of the 'perhaps' bit.

'bottom gold and black' is the wordplay.
'bottom' becomes 'bed' (synonyms).
'gold' becomes 'Au' (Au is the chemical symbol for gold).
'and' means one lot of letters go next to another.
'black' becomes 'b' (as in pencil classifications).
'bed'+'au'+'b'='BEDAUB'

Can you help me to learn more?

(Other definitions for bedaub that I've seen before include "Splodge with paint" , "Crudely paint" , "Smear (with a sticky substance)" , "Smear with something sticky" .)

I've seen this clue in The Daily Mail.

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