Related Clues:

• Turned the key, facilitated entry
• Turned key to permit entry, or removed lid
• Unfastened
• Gave access by unlocking
• Took the lid off
• Started, a meeting say
• Undid or began
• Turned key and unlocked
• Went first to show the way
• Gave access using key
• Undid, a parcel say, or began
• Well, that's what they'll make one there
• First and foremost, this was heavy, by the sound of it
• Not close to the writer in the ode
• If M is over this, then you've been fooled