The software/platform/app really is crap. There are too many problems for me to list.
More importantly, enjoyed this, loved the Spoonerism, 14d was very neat, (Yes the 'primarily' was helpful!). 14d my CoD.
Cannot quite parse 5a.
For those stuck on 23a. Receding is those whose hair is going ???? with a letter for temperature and one for lecturer I think. One of a pair in a fairy tale.