Pacific atoll's central point (6)
I believe the answer is:
midway
This might be a double definition.
'pacific atoll's central' is the first definition.
'midway' can be an answer for 'central' (thesaurus). I'm not sure about the 'pacific atoll's' bit.
'point' is the second definition.
(I have seen 'Central point' mean 'midway' so perhaps 'point' could also mean 'midway')
Can you help me to learn more?
(Other definitions for midway that I've seen before include "Equally distant from the extremes" , "Towards the middle" , "Central point" , "Half the distance" , "At the fifty per cent point" .)