Banshee pledging to give sanctuary to those easily led (7)

I believe the answer is:

sheeple

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'sanctuary to those easily led' is the definition.
I don't know anything about this answer so I can't tell whether it can be defined by this definition.

'banshee pledging to give' is the wordplay.
'to give' says the answer is hidden in the clue (I've seen 'gives' mean this).
'SHEEPLE' is hidden within 'banshee pledging'.

Can you help me to learn more?

(Another definition for sheeple that I've seen is " flock!".)

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