Related Clues:

• Future perfect, for one
• Pluperfect, e.g.
• Noun concerning verbs
• Needing a massage
• Needing kneading?
• Far from relaxed
• Lacking slack
• In knots
• In danger of snapping
• Like some eels or catfish
• Past or future
• Present, for one
• Hardly relaxed
• It may be perfect
• All knotted up