Phew! Hindered by post-parkrun fatigue and helped by Chambers, I struggled to the end. This was too hard for me without dictionary suggestions. Did anyone finish this puzzle using nothing but their grey matter?
Stuck in the NE. Not sure of the ending for 11a as I can't parse either alternative, then 5a and 8d remain. I think I know what 5a is about, but I suspect it's a phrase I don't know. Any hints, please?