The extra letters in clues spelt out “sheet, forked, chain, ball, blitz”, words for lightning. Letters discarded from clashes gave “Ben Franklin”. The final grid portrays his experiment using a KITE and a KEY on a wet STRING to extract electricity from lightning into a LEYDEN JAR.
Conventions: * = anagram, < = reversal
| No | Extra letter | Answer | Explanation |
|---|---|---|---|
| Across | |||
| 2 | SOFI | SOF(t) + I | |
| 5 | GRASSY | GRASS + (Part)Y | |
| 10 | (S)he | LEVI | LEVI(n); ref. Primo Levi |
| 12 | s(H)ot | TALK | T + ALKIE − IE |
| 14 | MONILIAE | MILIA around ON + E; the plural is in the OED and Oxford Dictionary of English | |
| 15 | wok(E) | KERB | (wo)K + ER + B |
| 16 | RENDERS | REMINDERS − MI | |
| 18 | ENSILED | DELI < after ENS | |
| 20 | mad(E) | GYTE | GY(ra)TE |
| 21 | learn(T) | CONICS | (CON + C + S) around I’ |
| 23 | (F)at | SCEATT | AT in (SECT with contents reversed) |
| 26 | TARN | 2 meanings | |
| 27 | HARSH | HARDISH − DI | |
| 29 | b(O)ard | RAILE | (gam)E after RAIL |
| 31 | BUMS | 2 meanings | |
| 33 | AIRGLOW | ((h)AIR(y) + LOW) around G | |
| 36 | A(R)t | INK IN | IN + KIN |
| 39 | gun(K) | SANG-DE-BOEUF | (OF SEABED GUN) * |
| 40 | (E)wing | ELL | EL + L |
| 41 | pow(D)er | YPLAST | (Y + LAST) around P |
| 43 | SEE A WOLF | EASE * + FLOW < | |
| 44 | DAYDREAMERS | READY * around D:REAM + (1980)S | |
| Down | |||
| 1 | lan(C)e | BLOKEISH | BISH around LOKE |
| 2 | (H)and | SELENIC | ECLIPSE * with ’N’ for P(rotection) |
| 3 | OVERSEEN | 2 meanings | |
| 4 | LIMBIC | LI(t) + MB + I/C | |
| 6 | NAIN | NAVARIN − VAR | |
| 7 | (A)side | ALL | ALL(y) |
| 8 | Runn(I)er | SKIEY | SKI + E(gg) Y(olk) |
| 9 | SKIRTS | STRIKES < − (Th)E | |
| 11 | HOLLO | HOLLO(w) | |
| 13 | DESERT | 2 meanings | |
| 17 | EAN | (j)EAN(s) | |
| 19 | bar(N) | DIOR | ROD < around I |
| 22 | (B)rag | SAIL | ASSAIL − (A + S) |
| 24 | se(A)t | ASSIGNED | AS + SIGNED |
| 25 | Co(L)in’s | TRIKE | STRIKE − (debt)S |
| 26 | TAK | TALK − L; ref. 12ac | |
| 28 | S(L)ide | HANDJAR | HAND + RAJ < |
| 30 | (B)one | LOCUST | LOT around (C + US) |
| 31 | VISÉED | SEE in VID | |
| 32 | (L)ending | MANLEY | ((Jamaica)N + LE(x)) in MAY |
| 34 | t(I)es | WEFTES | WEF + TES |
| 35 | SALSE | S in SALE | |
| 37 | (T)urn | NOLL | OLL(a) after (Quee)N |
| 38 | NEALE | NÉ + ALE | |
| 42 | (Z)one | POA | PO + A |