Answer:

itsy

Answer	Crossword Clue
ITSY	".. Bitsy Spider"
ITSY	Kind of bitsy
ITSY	Bitsy opener

ITSY	Wee
ITSY	Spider size?
ITSY	..-bitsy
ITSY	Teensy
ITSY	Teeny
ITSY	Like a song's spider
ITSY	Teeny, to a kid
ITSY	Minuscule

ITSY	Smaller than small
ITSY	...-bitsy
ITSY	Part of an oft-sung bikini description
ITSY	Tiny, in kidspeak
ITSY	Tot's "little"
ITSY	Wee, in kidspeak
ITSY	Part of a spout-climbing spider's description
ITSY	"The ..-bitsy spider ..."

ITSY	Quaintly small
ITSY	Bitsy beginning
ITSY	Very small, in kidspeak
ITSY	"The ...-Bitsy Spider"
ITSY	Bitsy preceder
ITSY	Word describing a yellow polkadot bikini
ITSY	Like Brian Hyland's bikini
ITSY	... - bitsy

ITSY	Half small?
ITSY	Bitsy leader
ITSY	"The ...-bitsy spider ..."
ITSY	"... Bitsy Teenie Weenie Yellow Polka Dot Bikini"
ITSY	Tiny, informally
ITSY	Tot's "tiny"
ITSY	Wee, in brief
ITSY	Half minute?

ITSY	Kin to teensy
ITSY	Bitsy's partner
ITSY	.-bitsy
ITSY	... -bitsy
ITSY	Far from substantial