Bob possibly turned hysterical, blowing comfy lead (9)
I believe the answer is:
This clue might be a double definition.
'bob possibly' is the first definition.
(bob is a kind of hairstyle)
'turned hysterical blowing comfy lead' is the second definition.
Although both the answer and definition are singular nouns, I can't understand how they can define each other.
Can you help me to learn more?
(Other definitions for hairstyle that I've seen before include "DA possibly" , "Pageboy or bob, say" , "Design of crowning glory" .)