Crossword Genius

Source of brew makes a teeter totter (3-4)

Ross

I believe the answer is:

tea-tree

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'source of brew' is the definition.
'tea tree' can be an answer for 'source' (I have seen 'source of antiseptic' mean 'tea tree' so perhaps 'source' could also mean 'tea tree'). I am not certain of the 'of brew' bit.

'a teeter totter' is the wordplay.
'totter' indicates anagramming the letters.
'a'+'teeter'='ateeter'
'ateeter' is an anagram of 'TEA-TREE'.

'makes' acts as a link.

Can you help me to learn more?

I've seen this clue in the Sydney Morning Herald.
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