Saga

[Daij]

12a Favourite car with refusal to reverse (6)

M?N???              MINION maybe?

7d Sailor perhaps swaggered on island (7)

No letters, but, I'm thinking, BOATMAN

9a Weary after cycling to get beverage (3)

??R

19d Reduced part of pine ramp (3)

??N

Thanks in advance

[newmodarmy]

Or shipman?

Minion looks ok

[Captain2]

12 Yes, def 3

min·ion

  (mĭn′yən)

n.

1. An obsequious follower or dependent; a sycophant.

2. A subordinate official, especially a servile one.

3. One who is highly esteemed or favored; a darling.

Car = MINI + ON = refusal/no reversed

[Daij]

Mistake spotted - 7 is ??E?M?N

I'm thinking CREWMAN but can't  parse

 

[Captain2]

19 Nip PIN(e) ramped/reversed

[Captain2]

^^^ Ignore my 19, please

[Captain2]

7 Crew-man

Crew is past participle of (to) crow (to boast one's superiority/swagger)

[Daij]

Thanks very much for your help