in a way); ESTONIA (28A. Hiiumaa Island belongs to it) ; ARMLETS (42A. Small, narrow bays). A fairly good amount of those of six letters: PHOBOS (1D. Moon of Mars); LABORS (2D. Breaks one’s back); AVIATE (3D. Play an ace?) which an AIRWOMAN may do; NEEDBE (9D. Required); EASELS (10D. Conference