|  | IGNIS | Alternative name for a will-o'the-wisp; from Medieval Latin, 'foolish fire' (5) | 
|  | FATUSS | Alternative name for a will-o'the-wisp; from Medieval Latin, 'foolish fire' (6) | 
|  | IGNISFATUUS | Alternative name for a will-o'-the-wisp, from Latin, 'foolish fire' (5,6) | 
|  | LOCUM | Stand-in, especially for a doctor or cleric; from medieval Latin, 'one holding a place' (5) | 
|  | NACRE | Either from Medieval Latin or a Persian dialect. what is another name for mother- of-pearl? (5) | 
|  | COTTA | Short form of the Roman Catholic surplice named from Medieval Latin, 'coat' (5) | 
|  | DUCAT | Gold or silver coin of varying values formerly much used in Europe; from medieval Latin, 'relating to a duke' (5) | 
|  | JACKOLANTERN | Another name for a will-o'-the-wisp | 
|  | MATER | Medieval Latin hymn commemorating the sorrows of Mary at the Crucifixion, used in the Mass and other services (6,5) | 
|  | SPEND | Use up what will-o'-the-wisp has finally (5) | 
|  | HEIRS | Ones gathering for a will reading | 
|  | SWAMP | Will-o'-the-wisp locale | 
|  | LEECH | Shelter church from medieval physician (5) | 
|  | TENENS | Stand-in, especially for a doctor or cleric; from medieval Latin, 'one holding a place' (6) | 
|  | MAGNA | Medieval Latin for "great" | 
|  | SNARE | Drum descended from medieval tabors | 
|  | SPUNKIE | In Scotland, a will-o-the- wisp, or to Robert Burns, whisky (7) | 
|  | VIVAVOCE | Expressed orally; from medieval Latin, 'by or with the living voice' (4,4) | 
|  | SWAMPGAS | What causes a will-o'-the-wisp | 
|  | TRAVELLINGLIGHT | A will-o'-the-wisp, perhaps? |