Morning all,
Stuck on a few:
11a Irish artist prone to change? (5) O????
12a The surname of two German artists, father and son (7) H???E?N
2d Outrage, disgust (5) A?P??
8d Saying, expressing (8) ???A???G
9d Inundation, arrival (6) ???L??
16a A cheeky young firl (4) No letters yet