A few more squares filled and plodding on. I think the answer to 3 down is SCARCITIES but cannot break it down. If it is, could you please say why. If it is not, a hint would really help
3 down: Pronounced absence of frozen stuff used in eating places (10)
First letter S (from glasshouses) and I am fairly certain fifth is C
I'm assuming the 'frozen stuff' is ice, but if so, it is split up.