Related Clues:

• It's not this, you see
• It's not the sound of the C that's so cold
• Not so hot to be so hard in drink
• It's not this that's hard to regard
• It's never so hot to get just this from the court
• However hard, it's not this, see
• It's hard to get off with this for work when it's so cold
• It's not this, see, that makes the water hard
• Hard to get to the end of 13 across - cold, too (3)
• See that it's not so hard as this
• Nice at last to have it 21 down
• Hard to make it with no heat
• Sounds as if one frees this, but it's hard
• It's not this that's hard, see
• It's not so hot to have it in a drink