ACROSS
4. CHIA
5. DIVE
7. JIMMYJAMES
8. JUB
9. DULL
11. EGG
12. ONE
14. GYM

DOWN:
1. KORA
2. ACHYHEAD
3. MIAMOUSE
6. GARON
7. JINGLY
10. UBER
13. EPPA

Thanks again Izzy, for posting answers :)