Terrified of fasteners in getting a haircut (10)

I believe the answer is:

dreadlocks

I'm a little stuck... Click here to teach me more about this clue!

'haircut' is the definition.
(I know that dreadlocks is a haircut)

'terrified of fasteners' is the wordplay.
'terrified of' becomes 'dread' (I can't justify this - if you can you should believe this answer much more).
'fasteners' becomes 'locks' (lock is a kind of fastener).
'dread'+'locks'='DREADLOCKS'

'in getting a' is the link.
I am not very happy about this link. Some or all of it may belong to another bit of the clue.

Can you help me to learn more?

(Other definitions for dreadlocks that I've seen before include "Jamaican hairstyle" , "They're pretty hairy!" , "Matted thatch" , "Barnet" , "Put hair in these" .)

I've seen this clue in the Sydney Morning Herald.

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