Clue: Language spoken on the other side of the world is music to Eliza's ears (6)
Answer: STRINE
Explanation: Language spoken on the other side of the world is music to Eliza's ears (6)
In Cockney, "strain" would be pronounced **STRINE**, and the Eliza in the clue refers to Eliza Dolittle, the Cockney flowerseller from *My Fair Lady