It's made for closing inside level crossing (6)

I believe the answer is:

velcro

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'it's made for closing' is the definition.
I can't judge whether this defines the answer.

'inside level crossing' is the wordplay.
'inside' indicates a hidden word.
'VELCRO' is hidden in the letters of 'level crossing'.

Can you help me to learn more?

(Other definitions for velcro that I've seen before include "secure bond" , "Clothes fastener of two pieces of cloth that stick" , "Fastener with tiny hooked threads" , "Modern fastening material in clover" , "Two strips with tiny hooks and eyes for fastening" .)

I've seen this clue in The Irish Times.

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