Insane reasons to provide engines with wheels (11)

I believe the answer is:

locomotives

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'provide engines with wheels' is the definition.
I can't tell whether this defines the answer.

'insane reasons' is the wordplay.
'insane' becomes 'loco' (similar in meaning).
'reasons' becomes 'motives' (I've seen this before).
'loco'+'motives'='LOCOMOTIVES'

'to' acts as a link.

Can you help me to learn more?

I've seen this clue in The Independent.

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