The extra letters in wordplay spelt out “second name of the twenty-ninth president of the USA”, referring to Warren G Harding, whose middle name GAMALIEL was entered below the grid. The unclued entries were the second (middle) names of other American presidents, each entered at his appropriate number: 6dn John QUINCY Adams, 11dn James KNOX Polk, 19dn Rutherford BIRCHARD Hayes, 20dn James ABRAM Garfield, 43ac George WALKER Bush. For 33ac, Harry S Truman had no real second name (the initial S was adopted in honour of his grandfathers Anderson Shipp Truman and Solomon Young), so that grid entry was left blank.
Conventions: * = anagram, < = reversal
| Answer | Explanation [extra letter] |
|---|---|
| ABOARD | AD[O] around BOAR |
| ACCLAIMS | SCA[M] < around CLAIM |
| ALAS | AL[I]AS |
| APRÈS-SKI | APRI(l) around SE[E]KS * |
| ARSENAL | (LANES + RA[W]) < |
| ASIA | [E]AS(e) + I + A(ppreciate) |
| AVATAR | A + V + AT[T]AR |
| AVENUE | [C]AVE + (e)N(s)U(r)E(s) |
| BAWR | B[U]T − T + AWR(y) |
| CANAPÉ | [S]CAN + A + PE |
| CLEAR | CAR around LE[D] |
| COLLEGE | GEL < in COL[N]E |
| CONTINUE | CONTINE[N](t) around U |
| DESPOIL | DESPO[T] + I(llega)L |
| DIDDLE | DIDD[Y] + LE |
| ECZEMA | CZ in (E + [T]EAM *) |
| EILD | LADIE[S] * − A |
| EMEU | ME[S] in EU |
| ENSA | ((unle)AS[H] NE(farious)) < |
| EREMITE | MITE after É[I]RE |
| GAIA | G[H]ANAIAN − N − N − A |
| IBIS | I + BI[A]S |
| IDIOT | ID + I[N]TO * |
| IDOL | I + LO[A]D < |
| IN UTERO | (UNITE[D] + R(esearch)) * + O |
| KADE | AD in [E]KE |
| LACTIC | L[O](af) + ARCTIC − R |
| MANTA | ANT in MA[T] |
| MEDLAR | (L + [F]ED RAM) * |
| NAVAIDS | (DAN < around VAI[N]) + (beacon)S |
| NAVY | VAN < + [N]Y |
| NIDAL | D[E]NIAL * |
| PERCEPT | P + PER[F]ECT * |
| PERIBLEM | PE[T]RI BLEM(ished) |
| PEUGEOT | GET-UP * around [T]OE < |
| REBEL | [H]ER < + BELT − T |
| REMEN | [O]RE + MEN |
| RETRACT | CATER[E]R * + (regre)T |
| SEND | S[P]END |
| STREAK | S + T[E]REK around A |
| THRUMMER | (RUM + M) in THER[E] |
| TRULL | (T + RULE[R]) with L for E |
| TSABIAN | (ISN’T + A BA[N]) * |