Urgent message - false gem alert (8)

I believe the answer is:

I'm a little stuck... Click here to teach me more about this clue!

'urgent message' is the definition.
'telegram' can be an answer for 'message' (telegram is a kind of message). I'm not certain of the 'urgent' bit.

'false gem alert' is the wordplay.
'false' is an anagram indicator.
'gem'+'alert'='gemalert'
'gemalert' is an anagram of 'TELEGRAM'.

Can you help me to learn more?

(Other definitions for telegram that I've seen before include "Message transmitted by wire" , "Now obsolete communication over a wire" , "Message sent by wire" , "cable" , "Dispatch" .)

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