One opposed (4 letters)

Ruling party in Johannesburg: Abbr. (3 letters)

Puerto ___ (4 letters)

Those against (5 letters)

Soft mineral (4 letters)

Arp's art (4 letters)

Con's opposite (3 letters)

Scan or scam (3 letters)

Spile (5 letters)

Tree ___ (quiver tree) (4 letters)

Zebulon of exploring fame (4 letters)

Prominent (7 letters)