15d) Upstage posh young lady? (3) GE?
21a) 1 across (Leading Light) left in church with flag of St. Andrews? (8)
22D) Make mould in advance and change under pressure (7) ??E?O?M
26d) 5 (Ivan) on one German vessel (4) ?E?N
Is 24 across IRAN or IRAQ (Clue: Republicans close to revolution in this country) Thanks in advance for your help.