Crossword Genius

Bring me up part of tree to make board (6)

Ross

I believe the answer is:

embark

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'board' is the definition.
(I know that embark is a kind of board)

'bring me up part of tree' is the wordplay.
'bring me up' becomes 'em' (I can't explain this - if you can you should give a lot more credence to this answer).
'part of tree' becomes 'bark' ('bark' is part of 'tree').
'em'+'bark'='EMBARK'

'to make' acts as a link.

Can you help me to learn more?

(Other definitions for embark that I've seen before include "Go on board ship or plane" , "Start" , "board production" , "get on board" , "Go aboard" .)

I've seen this clue in The Guardian and The Times.
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