I have Refocus for 1a -Stimulate (the memory)(7), Gillespie for 18a -Primal Screams lead singer (9) and Donator for 23a- Benefactor (7). Maybe one is wrong?
1st could be refresh?
maybe sponser for benefactor.
don't have the crossword so i don't know what the letters are.
to be honest i was hoping you had posted the wrong clue by mistake.(it happens).
im sure someone will help.