Made Sour Kamikaze ultimately to drink in Mediterranean (10)

I believe the answer is:

embittered

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

'made sour' is the definition.
'embittered' can be an answer for 'sour' (thesaurus). I'm not sure about the 'made' bit.

'kamikaze ultimately to drink in mediterranean' is the wordplay.
'ultimately' suggests the final letters.
'to drink' becomes 'bitter' (bitter is a kind of drink**).
'in' indicates putting letters inside.
'mediterranean' becomes 'med' (I've seen this in other clues).
The last letter of 'kamikaze' is 'e'.
'bitter' going inside 'med' is 'mbittered'.
'e'+'mbittered'='EMBITTERED'

Can you help me to learn more?

(Other definitions for embittered that I've seen before include "Made resentful" , "Made more sour" .)

I've seen this clue in the Irish Times.

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