Clue: Capital generated from second football stand at outskirts of Jacksonville (6)
Answer: SKOPJE
Explanation: Definition: Capital
A charade of S ('second') plus KOP (UK 'football stand'; short for Spion Kop, named for the resemblance of its steep rake to the hill in South Africa, site of the Battle of Spion Kop in 1900) plus JE ('outskirts of **J**acksonvilll**E**'), for the capital of North Macedonia.