Lines are clear, as IMO is their purpose i.e. to stop random parking on the verges which damages the ground- as can be seen in the photo - and I suspect people accessing the country park.
The clearway sign is not germane: it's placed in Waungaled Lane (presumably, my GSV doesn't give this a name) to give notice that the A48 is a clearway, and there are back-to-back clearway ends signs for traffic coming off the A48.