Wait For It... solution
by Kegler
As shown by the highlighted squares, the letters in the phrase THE OTHER SHOE “drop” to the bottom of their respective words.
Across
| 1 | SEE + P |  
| 4 | SIGHTS ("SITES" hom) |  
| 10 | PI(PI)TS |  
| 12 | L(AG)OON |  
| 13 | AGENdA |  
| 14 | TIM (rev) |  
| 15 | CUR + L |  
| 16 | CH + A + T |  
| 17 | SU + TRA (rev) |  
| 18 | HO(LIE)ST |  
| 19 | R(HYMn)EaRS |  
| 21 | TI(L)DE |  
| 22 | BLEAT (TABLE anag) |  
| 24 | C(LI)ENTS |  
| 29 | TREACLE (ELECTRA anag) |  
| 32 | S + CATS |  
| 34 | OSLO (SOLO anag) |  
| 35 | E + IRE |  
| 36 | PR + O |  
| 37 | L(EVE) + L |  
| 38 | SESTET (TSETSE anag) |  
| 39 | RESIDE (DESIRE anag) |  
| 40 | ET(C)HER |  
| 41 | monSOON |  
 
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Down
| 1 | SPACER (rev) |  
| 2 | [H/w]EIGHT {"drop" the H} |  
| 3 | P(O)INT {"drop" the O} |  
| 4 | STARTLE (RATTLES anag) {"drop" the T} |  
| 5 | GE + LID (EG rev) {"drop" the E} |  
| 6 | H + AMS |  
| 7 | SHO(U)T {"drop" the H} |  
| 8 | TOR + RID |  
| 9 | UNLEAD (hidden) {"drop" the E} |  
| 11 | STA(I)R |  
| 15 | CUT + I + E |  
| 20 | MATTEr |  
| 21 | TRICK + LE {"drop" the R} |  
| 22 | BA(S)TES {"drop" the T} |  
| 23 | LACIER (ECLAIR anag) |  
| 25 | LAB + OR |  
| 26 | TOO + LED {"drop" the O} |  
| 27 | STOL + EN (rev) |  
| 28 | PEARS ("PARES" hom) {"drop" the E} |  
| 30 | HEAR + T {"drop" the H} |  
| 31 | SLOpES {"drop" the S} |  
| 33 | SPECials |  
 
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