Possible Clues:

• That's the one to examine one over the bed
• Old sixpence for a bed canopy
• One may give it a trial over the bed
• One tried to get it all over the bed
• Might one conduct a trial over the bed?
• Trying to get over the bed
• One who tries out - canopy
• Person examining canopy over four-poster bed
• One might make you try to get over the bed
• One might give it a trial over a bed