Crossword Genius

Expire wearing a uniform? Farewell (5)

Ross

I believe the answer is:

adieu

'farewell' is the definition.
(adieu is a kind of farewell)

'expire wearing a uniform?' is the wordplay.
'expire' becomes 'die' (synonyms).
'wearing' indicates putting letters inside.
'uniform?' becomes 'U' (phonetic alphabet: alpha, bravo, charlie etc.).
'a'+'u'='au'
'die' placed within 'au' is 'ADIEU'.

(Other definitions for adieu that I've seen before include "Farewel" , "Farewell, Monsieur!" , "Some say it when leaving" , "Bye" , "Goodbye, mademoiselle" .)

I've seen this clue in The Telegraph.
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