37a Produced when neutron stars collide, the noblest of all the metals, which is used in gilding [4]
56a Grains of quartz, topaz, garnet, shell or coral collectively, from which glass, pearls, stucco or Portland cement can derive [4]
39d Word for an English country house and its grounds, a market square or a top race position [5]
56d Associated with a dark sky paradox by Heinrich Olbers in 1823, any one of the luminous bodies forming part of the universe's two trillion galaxies [4]
I've got my answers ready for the next stage of this thing but I won't wait around for you to post it Steff, 'cos I'm tired and heading up to bed. So I'll post my answers later tomorrow. It won't matter anyway; I never get them right!
Long Zoom pub meeting tonight, but the links were even later ! Our final topic was whether we were going to dare to meet physically on Friday 21st May in a real pub instead of Zooming.
Well done Chris, fastest finger first, with Mamya sleeping. ;-)