24 down has me stumped - A simple spore producing organism, 5,5 reads *l*m*/m*u*d.
It has been asked previously according to Google, but I cannot find it.
Thank you both very much - how and where did you find it?? My powers of investigation must need some attention, or perhaps I am just missing the MM links too much!
Elspeth, I knew the answer, but, if you type the crossword title into the red search box at the top of the page, you'll see where it has been asked before as the 9th entry down.