As usual, stuck on last three in "i" 2169.....
3d A capital in Pacific area I turned up? (4)
4d Institution silent about application (6)
15ac Male personality to meet Queen, showing a good deal of resistance (6)
Museum - I don't know why I couldn't see that. Meghom - never heard of it, so wouldn't have got it at all Apio - I have got ptolemaist as solution for 11ac so the last letter of 4d is "o". Apio? No! 11ac is planetaria, so Apia is right. Thanks, all and I'm going to have to lie down.....