Advice on clues in anagram form (7)

I believe the answer is:

counsel

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

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

'on clues in anagram form' is the wordplay.
'on clues' anagrams to 'COUNSEL'.
But, I am unsure how the anagram is indicated.

Can you help me to learn more?

(Other definitions for counsel that I've seen before include "In court brief" , "kept by the uncommunicative" , "Legal advice" , "Advice; barrister" , "Legal adviser" .)

I've seen this clue in The Globe and Mail.

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