OK. Thank you very much,
Just to clarify, I rejected this alternative immediately since the protagonist stabbed himself with appropriate hairpins twice, so I was expecting a plural form.
His real fate is not a resulting physical condition but is the central theme of the next play in the second drama, and the five letters involved are readily available in the grid. Maybe Dysart did not realise this, or perhaps it is a deliberate red herring to catch anyone who knows enough about the context. And I am a mathematician, not a classicist!
I am disappointed. The more subtle fate could well have been worked into the endgame.