I've enjoyed this one (mostly because awful weather kept me '24 across' + S)...
...but have only 23a left! The tree is plain, but the rest... I also had strewn for a while, but even with the O...!
I still can not get the Dog - Cash Cow clue, and it is driving me bonkers, I've been at this now for nearly 5 hours and getting nowhere, even with the additional pointers that have already been posted. What is it ?