I think I've finally solved all the across clues but there are two I can't parse ...
8 - Solution gains extra mark for language (3)
I think this is the abbreviation and the definition is a (programming) "language" but I can't parse any of it.
9 - Without husband, fruit turns (4)
My definition is "turns" and I thought that if I add H to the answer it would give a fruit - but it doesn't?