Cryptic crossword No 4,017

Across

1. Lumber South American footballer (6)
2. November finds Hazel more unfeeling (6)
3. Way in which gentleman captivates lady (6)
4. Nudge Oliver rudely - pig! (11)
5. Wax lyrical - Pam recites (10)
6. Cold spasm blanketing capital city is weather-related (8)
7. Admirer promises commitment in due course (8)
8. George and Bill to obtain device (6)
9. Poet heard, sounded like Lamb? (4)
10. Biscuit found in midst of piecrust (4)
11. Roomy health club promises to accommodate a hundred (8)
12. Map with a clue crumpled - it's my fault! (3,5)
13. Soviet commander, flier perhaps? (3,7)

Down

1. Basil, maybe will get dinner cooked (10)
2. Hearty Jack, maybe, getting 1ac (7)
3. Egregious error to frame is French polisher, perhaps (8)
4. See 6d
5. Relaxed dial? (4-4)
6. Beginning music, I learn, surprisingly, Rock (7)
7. Did Twitter ungrammatically, got fired (6)
8. Incensed when outrageous Puritanism has Italian deported (2,2,4)
9. Twin towns listed (6,4)
10. Jazzy chord penned by singers has Tom in two minds? (12,3)
11. Supports leaving east initially to find partners (7)
12. Excited when a run-out brought into play (7)
13. Blithely, Blairite at heart, lonely, discontented (6)