Vital leak announced -- one can't take off (4)
I believe the answer is:
kiwi
'take off' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how one could define the other.
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for kiwi that I've seen before include "'Fruit, bird and NZ rugby player (4)'" , "Fruit and flightless bird" , "Enzedder; flightless bird" , "N Zealand bird" , "apteryx" .)