---

All answers having "Lickety-split" as clue:

3 Character Answers:

---

PDQ



4 Character Answers:

---

ASAP

FAST



5 Character Answers:

---

APACE

RAPID



6 Character Answers:

---

PRESTO

PRONTO



7 Character Answers:

---

INARUSH

INHASTE



8 Character Answers:

---

CHOPCHOP

INAFLASH

INNOTIME

PELLMELL

SPEEDILY



9 Character Answers:

---

INASECOND

POSTHASTE



11 Character Answers:

---

ATWARPSPEED

ONTHEDOUBLE



13 Character Answers:

---

INNOTHINGFLAT



14 Character Answers:

---

LIKETHEDICKENS



15 Character Answers:

---

ASQUICKASAFLASH

LIKEAHOUSEAFIRE