Some obstacle, a sticking point (4)

I believe the answer is:

east

'point' is the definition.
(east is a kind of point)

'some obstacle a sticking' is the wordplay.
'some' indicates a hidden word (some parts of the word are used).
'EAST' can be found hidden inside 'obstacle a sticking'.

(Other definitions for east that I've seen before include "Airport near Derby" , "To right if facing North" , "Bidder after North (bridge)" , "One of four at table" , "Towards the dawn" .)

I've seen this clue in The Times.

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