Hell-hole's opening for normal person (5)

I believe the answer is:

hello

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

'opening for normal person' is the definition.
I can't tell whether this defines the answer.

'hell-hole's' is the wordplay.
'hole' becomes 'O' (O looks like a hole).
'hell'+'o'='HELLO'

Can you help me to learn more?

(Other definitions for hello that I've seen before include "Conventional word of greeting" , "Common greeting as on phone" , "Introductory greeting" , "Welcome" , "glossy magazine" .)

I've seen this clue in The Independent.

Want a hint initially instead of a full solution? Install my app