Cryptic crossword No 3,948

Across

1. Contentious actor's lover in turmoil (13)
2. A little hope, with us taking in fellow people (6)
3. Tongue like a fish, usually exposed (7)
4. Features art critics chase frantically (15)
5. Termite puts an end to furniture design firm (7)
6. Graduate knob to measure time (7)
7. At 20 degrees latitude, cool creature loses its head again and again (4,11)
8. Initially wanting old Prime Minister Netanyahu for example (7)
9. Cut loose after date leads to falling out (6)
10. In which state, an object is considered perfect, (possibly has a hole in the middle) (4,9)

Down

1. Dunderhead upset about vase (6)
2. Originally ordinary poppy. It's undergone modification (5)
3. Douglas for example dismissing information, takes a lot of patience and bother before interview (5,10)
4. Love turning up volume on middle section of Blue Suede Shoes. It's sophisticated (7)
5. Wireless broadcast a torrid arsonist (10,5)
6. Satisfied with it, everyone may look inside set (8)
7. Entrance to Chelsea's busy ground (7)
8. Violet, call back around 1 (5)
9. Thinker in conversation, preceded by part of homemade film (8)
10. Painkiller given by half of nurses, often losing heart (7)
11. One out of position ruined possibilities (7)
12. A Parisian festival is foul (6)