Crossword Genius

Bring up a plank of wood (5)

Ross

I believe the answer is:

balsa

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'wood' is the definition.
(type of wood)

'bring up a plank' is the wordplay.
'bring up' says the letters should be written backwards.
'plank' becomes 'slab' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'a'+'slab'='aslab'
'aslab' written backwards gives 'BALSA'.

'of' is the link.

Can you help me to learn more?

(Other definitions for balsa that I've seen before include "Tropical American tree" , "lightweight boat-builder" , "Tree with light soft wood" , "Lightweight timber" , "Something light" .)

I've seen this clue in The Times.
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