Cryptic crossword No 3,986

Across

1. Shares in last bit of shore leave - that's special (8)
2. If expert emptied oxygen out... (8)
3. Success regularly patrolling border plots (7)
4. 'Santa Claus not a hollow fable' distorted truth (11)
5. Ignorant Indian prince sacrificing boy in northern river (7)
6. ... some respiration mutually reversed Pierre's fall (6)
7. Society queen implicated in affair getting protection (4,6)
8. Wife following antivaccinationist's lead in declining cover (6)
9. God damages bar (4)
10. Moper hates fresh air (10)
11. Judge lying on bed initially wanting heroin (4)
12. Feminine warriors' leader merely checking mother (7)
13. Permission to open hull of commander's chopper (7)

Down

1. Canes hags supporting suggestion of sadism (8)
2. Promotion on active media zone is commonplace in Times Square (1,4,1,5)
3. Laura briefly taken aback bolstering accountant's gains (7)
4. A terribly exhausted self-righteous state is exceptional (8)
5. Evergreen Fight Club? (7)
6. Unit for one stuck in Bury? (7)
7. Ensconced in posh car oddly ignored dental maladjustment (3,3)
8. Teacher harmed seat cruelly (10)
9. Retires from middle of tiles on edge of roof (6)
10. Old South American and tattoo artist in conversation (4)
11. April undressed Martha's sister first (7)
12. Boy covering naked soul with cunning accepted gold resoundingly (10)
13. Heavy metal guitarist orders liberal drugs to begin with (4)