Run into the buffers on my last three clues
23 D...Slow down bypassing Kelvin Hill in Glasgow (4) for which I have _ R _ E
13 D... State of beauty with power to captivate the Italian? (10) for which I have _ I _ _ _ B _ L _ E
19 A...Dame Elisabeth started with indistinct sound (5) for which I have S _ _ _ A
Any hints would be appreciated