Related Clues:

• Keep from decay in perverse way
• Keep from decay, corpse or food
• Maintain, protect from decay
• Prevent from deteriorating
• Protect from decay
• Keep safe or in unchanged condition
• Maintain in unaltered condition
• It's up to us to get the mark, so keep it going
• It's up to us to make a mark and keep it up
• It's up to us to mark this and keep it up
• Keep us up to the mark
• That should keep us up to the mark
• Keep us up with the saint for 21 across
• Get us back with a bad mark and keep it up
• Maintain quiet reticence