Crossword Genius

Identify tremors in San Diego (8)

Ross

I believe the answer is:

diagnose

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

'identify' is the definition.
(I've seen this before)

'tremors in san diego' is the wordplay.
'san diego' can be anagrammed to 'DIAGNOSE'.
However, I'm unsure how the anagram is indicated.

Can you help me to learn more?

(Other definitions for diagnose that I've seen before include "Find cause of illness in San Diego" , "Determine the nature of a medical problem" , "Establish cause in San Diego" , "San Diego (anag)" , "Establish nature of illness after study of symptoms" .)

I've seen this clue in The Sun.
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