Possible Clues:

• Dash to Canal Turn - except at night
• Up at night, as owls
• Number go into State by night
• That's by 35 across, by the sound of it
• Tory's flipping spin – a Liberal's in the dark?
• That's no light matter
• Corrupt count ran off — left by night
• '... the dull sound, as if - women were beating great carpets' (Virginia Woolf)
• Odd lot - can run at night
• Conal is about to turn in for the night