Dangerous animals close? Cor, I'd get excited! (10)

I believe the answer is:

crocodiles

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'dangerous animals' is the definition.
'crocodiles' can be an answer for 'animals' (crocodile is a kind of animal). I'm unsure of the 'dangerous' bit.

'close? cor i'd get excited' is the wordplay.
'get excited' indicates an anagram (I've seen 'getting excited' mean this).
'close'+'cor'+'id'='closecorid'
'closecorid' is an anagram of 'CROCODILES'.

Can you help me to learn more?

I've seen this clue in The Guardian.

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