In reply to Alan James - Rockfax:
I'd post a picture but I don't know how.
Park in the usual place (top side road in your picture) near the entrance to the brick works - if it is a working day park on the verge because big lorries go past.
Walk to the lower side road - entrance to the lorry park. Cross the side road, hop over the wall at the corner, follow path 10m to old gate, go through gate (mind the rusty nail), follow faint path into the woods, path runs out but it is easy to find the crag after 2 minutes. Take a bin bag to remove rubbish, watch out for old wire/barbed wire under foot (trip hazard). Takes same time to get to the crag and is more pleasant that the lorry park.
It's important to hop over the wall at the corner - don't go up the side road. If you do go up the side road there is a ditch and barbed wire fence to tackle that is bypassed at the corner.
The lorry park guy is very nice but access has changed. I informed the RAD last month (but no reply or change). If you want the map posting tell me how!