Crossword Genius

Do some decorative work in two ways (3)

Ross

I believe the answer is:

tat

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

'do' is the definition.
The answer and definition can be both to do with creating things as well as being verbs in their base form.
Perhaps you can see a link between them that I don't see?

I cannot understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for tat that I've seen before include "Tawdry stuff" , "Worthless goods" , "Tawdry and shabby article" , "Worthless items" , "Make lace; tasteless stuff" .)

I've seen this clue in The Globe and Mail.
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