Attractive blonde in huge shock (9)
I believe the answer is:
bombshell
This clue could be a double definition.
'attractive blonde' is the first definition.
(I've seen this before)
'huge shock' is the second definition.
'bombshell' can be an answer for 'shock' (I have seen 'Terrible shock' mean 'bombshell' so perhaps 'shock' could also mean 'bombshell'). I'm not certain of the 'huge' bit.
'in' acts as a link.
Can you help me to learn more?
(Other definitions for bombshell that I've seen before include "Thunderbolt, shocking surprise" , "mine?" , "Sudden and surprising piece of news" , "Explosion" , "awful surprise" .)