Grab camel's strange old message (9)

I believe the answer is:

cablegram

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'old message' is the definition.
'cablegram' can be an answer for 'message' (cablegram is a kind of message). I am not sure about the 'old' bit.

'grab camel's strange' is the wordplay.
'strange' is an anagram indicator.
'grab'+'camel'='grabcamel'
'grabcamel' with letters rearranged gives 'CABLEGRAM'.

Can you help me to learn more?

(Another definition for cablegram that I've seen is " Urgent message".)

I've seen this clue in The Daily Express.

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