Thought senora should translate (6)

I believe the answer is:

reason

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

'thought' is the definition.
(thesaurus)

'senora should translate' is the wordplay.
'senora' anagrams to 'REASON'.
Though, I'm not clear how the anagram is indicated.

Can you help me to learn more?

(Other definitions for reason that I've seen before include "Justification; sanity" , "Power of thought" , "Logic and rationality" , "Employ logic" , "Cause; think logically" .)

I've seen this clue in The Telegraph.

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