| AMPLITUDE | Maximum extent of signal or vibration |
| FLAG | An oblong, square or triangle of bunting as a vexillary emblem, ensign, signal or standard; a yellow iris; a bushy tail; or, from the Old Norse for "slice of turf", a flat slab or paving-stone (4) |
| THRUM | A play on a stringed instrument; the imitative sound of said rhythmical or monotonous plucking; or, any continuous buzz or vibration (5) |
| CODE | Word originally for a collection or digest of laws, later a secret message or cryptogram cracked by means of a cipher; or, a system of signals such as Morse or Semaphore (4) |
| HOIST | Word for "lift", hence a group of flying colours or flags, raised as a signal; or, a crane, jack or pulley with which to heave, elevate or winch (5) |
| FREQUENCY | The number of waves that pass a fixed point in unit time; also, the number of cycles or vibrations undergone during one unit of time by a body in periodic motion. (9) |
| DROPOUT | One who has abandoned a course, school or rejected society; a brief loss of an electronic signal; or, the recommencement of play in rugby with a ball kicked from the hand (7) |
| TREMOR | A shudder or vibration (6) |
| PULSE | Regular beat or vibration (5) |
| ELASTICLIMIT | Maximum extent to which a solid can be stretched without lasting change of shape |
| HILT | Maximum extent |
| LARGEST | Generosity cut over time to the maximum extent (7) |
| FULLWHACK | Maximum extent (4,5) |
| UTMOST | (To the) maximum extent |
| HURRICANE | Wind up to the maximum extent |
| HAVEAFINGERINEVERYPIE | Be a busybody, emulating a smug Jack to maximum extent? |
| HIPPEST | In to the maximum extent |
| SHYEST | Reserved to the maximum extent |
| BROADEST | Cultivate beards to the maximum extent (8) |
| RETREAT | From the Latin meaning "pull back", a withdrawal of troops before enemies; a sunset bugle signal; or, a sanctuary for quiet contemplation, refuge, relaxation or solitude (7) |
