Crossword Genius

Dream about true skin

Ross

I believe the answer is:

derma

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

'skin' is the definition.
(scientific name for the skin)

'dream about true' is the wordplay.
'dream' anagrams to 'DERMA'.
However, I am unsure how the anagram is indicated.

Can you help me to learn more?

(Other definitions for derma that I've seen before include "Deep vascular inner layer of the skin" , "Flesh" , "Second protective layer" , "Corium, the inner layer of skin" , "Layer of living skin below the surface" .)

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