Cryptic crossword No 3,613

Across

1. I picked up rough kind of sport, it helps build social connection (3,7)
2. Flyer delivered by Spooner's untaught group (8)
3. Badly breaks blade cover (4,2)
4. Right time to regret (4)
5. Quaking tremors hit with its resistance reduced by heat (10)
6. a + 6? (6)
7. Mean one being silver lining (6)
8. Hidden in ten down hides game company (8)
9. How it is when you haven't a lightbulb moment? (5,2,4)
10. A tether regularly held back bird (4)
11. Dictated attack on a country (6)
12. Evacuation of former capital of Ohio, departs America (6)
13. Give a second gesture (6)

Down

1. Squirm from vermin seen around hotel (6)
2. Repeatedly hammered nail at the end of the day (3,2,3)
3. Stet's heading on papers by date is directed to the margin (4-2)
4. Bass part that accompanies cooked cut onion (8)
5. Where miners might be bilingual? (6)
6. Trade one comic needing repair (8)
7. Hefty run cut short at start (6)
8. Creative genius is fancy (8)
9. Loyal point found in modern fable (11)
10. Where you lie buried late queen, all but English aren't able to (6)
11. Marrying, not that many get up in speech (6)
12. See you abroad, head north lost (6)
13. Entrances in back of the old vacated rooms (6)