Related Clues:

• Of little substance or significance
• Petty, piffling
• Not being the first of 8 down, there's only four in 6 down
• That never made your sound
• How four matters little in the court case
• The younger Ronald, I am, back here (5)
• It's not much to hold not much liquid at last
• Not of an age to go underground, by the sound of it
• It might be the key that's too small
• There's four (or six) in the court case to make it unimportant
• Not important to have a little bottle of this at last
• Not of age
• By the sound of it, not made your smaller one
• It's not important whether there are four or six in the court case
• Not made your sound in this key