Paper clip, perhaps, to keep things secure (5,8)

I believe the answer is:

press fastener

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'to keep things secure' is the definition.
I can't judge whether this definition defines the answer.

'paper clip' is the wordplay.
'paper' becomes 'press' (I can't justify this - if you can you should give a lot more credence to this answer).
'clip' becomes 'fastener' (I've seen this in another clue).
'press'+'fastener'='PRESS FASTENER'

'perhaps' is the link.

Can you help me to learn more?

(Another definition for press fastener that I've seen is " that will to keep things secure".)

I've seen this clue in The Guardian and The Irish News.

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