Too long to wait for a half of sausages (4)

I believe the answer is:

ages

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

'too long' is the definition.
'ages' can be an answer for 'long' (thesaurus). I am unsure of the 'too' bit.

'wait for a half of sausages' is the wordplay.
'AGES' is hidden within the letters.
But, I'm unsure how this is indicated.

'to' is the link.

Can you help me to learn more?

(Other definitions for ages that I've seen before include "Long periods" , "(What seems) a very long time" , "Grows old like sage" , "Awfully long time" , "Aeons" .)

I've seen this clue in the Evening Standard.

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