Pop made tall spider (5-4-4)

I believe the answer is:

daddy-long-legs

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'tall spider' is the definition.
I don't know anything about this answer so I cannot tell whether this works.

'pop made' is the wordplay.
'pop' becomes 'daddy' (synonyms).
'made' becomes 'longlegs' (I can't justify this - if you can you should give a lot more credence to this answer).
'daddy'+'longlegs'='DADDY-LONG-LEGS'

Can you help me to learn more?

(Other definitions for daddy-long-legs that I've seen before include "Gladly send dog (anag) - kind of fly" , "Cranefly" , "Crane fly" .)

I've seen this clue in the Sydney Morning Herald.

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