Crossword Genius

Touches gingerly after roughage expands (8,3)


I believe the answer is:

branches out

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

'expands' is the definition.
The answer and definition can be both related to change as well as being verbs in their -s form.
Maybe you can see a link between them that I can't see?

'touches gingerly after roughage' is the wordplay.
I cannot really see how this works, but
an anagram of 'touches' is 'chesout' which is located in the answer.
'roughage' could be 'bran' (bran is a kind of roughage) and 'bran' is found within the answer.
This accounts for all the letters.
This explanation may well be incorrect...

Can you help me to learn more?

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