Cryptic crossword No 2,631

Across

1. Company is hesitant at first, and somewhat shy (6)
2. Strengthened part of shoe to walk back (6)
3. Avalanche ruins hotel unfortunately (6)
4. Investigation covering a heartless blackmail is likely (8)
5. In Innsbruck I'm chilly, guzzling hot dish (6)
6. Collections of instructions in playing fields includes one sports session by reserve (6,5)
7. Playing a DVD? Rather! (5,5)
8. Mocks men (4)
9. Go away and sketch (8)
10. Big name used to be entertaining, right? (4,4)
11. Doubtfully reveal - it is not independent (8)
12. Busy person with piece of string for Spooner's computer part (8)
13. Starts to live economically in America (4)
14. Standard of behaviour in women or men (4)
15. See 6a

Down

1. Consequences of wild inimical spot (12)
2. 'Ghosts' policy unsettled therapist? (12)
3. Grind narcotic plant - not too acrid, at first (9)
4. Right by secondary tracks reportedly (7)
5. Endlessly chant alone (3,4)
6. Copied key? Ran away! (7)
7. See 8a
8. Originally play important role in claim (5)
9. See 3d
10. Skulker weakly camouflaged (4,9)
11. Sailor's friend with collection for sale (7)
12. Reported fight about two things (4)
13. Oddly positioned site of a colonnade (4)