Cry of frustration, Vulcan finally out of hangar, malfunctioning (5)

I believe the answer is:

aargh

'cry of frustration' is the definition.

I can't explain the remainder of the clue.

(Other definitions for aargh that I've seen before include "I'm so frustrated!" , "Expression of dismay" , "Cry of utter frustration" , "Cry of exasperation!" , "I'm so exasperated!" .)

I've seen this clue in The Guardian.

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