Related Clues:

• Open slightly
• Foaming at the mouth
• About to explode
• Left so as to admit some light
• Flipped out
• Freaked out
• Whacked
• Delta follower
• Nuts or crackers, take your pick
• Clearly not locked
• March hare characteristic
• Barely open
• Off one's trolley
• Allowing entry
• Like Lady Macbeth