Teach how to swindle (5)

I believe the answer is:

cheat

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

'to swindle' is the definition.
(synonyms)

'teach' is the wordplay.
'teach' anagrams to 'CHEAT'.
But, I am not clear how this is indicated.

'how' is the link.

Can you help me to learn more?

(Other definitions for cheat that I've seen before include "Hoodwink" , "One dealing dishonestly" , "rook" , "Dishonest dealer" , "Deceive, defraud" .)

I've seen this clue in The Mirror.

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