Shouted the way to be guided! (6)

I believe the answer is:

howled

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'shouted' is the definition.
The answer and definition can be both to do with communicating as well as being past participle verbs.
Maybe they are linked in a way I don't understand?

'the way to be guided' is the wordplay.
'the way' becomes 'how' (how something is done).
'to be guided' becomes 'led' (similar in meaning).
'how'+'led'='HOWLED'

Can you help me to learn more?

(Another definition for howled that I've seen is " Emitted long loud cries".)

I've seen this clue in the Evening Standard.

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