Related Clues:

• It's omitted by some Cockneys - like Jack Sparrow?
• One cannot hear it when it is dropped
• Snake enraged, it starts hissing
• Wriggly thing, hopping mad, needing pee?
• When to make an illegal copy of such a letter
• Sound one's Hs, as with Hook?
• In character of bad one at sea? Sound at start of horror
• 'ook doesn't have what it takes to succeed thus
• Letter pronounced while breathing out
• Give voice to Beethoven's fifth
• Like Hook and his sound beginning
• Some folk carelessly drop this character in the middle of nowhere
• Pronounce a leading H
• Pronounce the letter H at the beginning of a word
• East-ender's house, say, might not have one