Here's what rhymes with calftail.
pale tail tale jail bail stale bale dale pail male scale fail mail sale sail trail nail rail veil frail gale hail shale whale vale wail snail flail hale braille kale faille wale hightail detail avail entail email assail curtail quail quale bewail derail grail impale taffrail bobtail prevail travail inhale exhale gunwale pigtail topsail unveil foresail monorail wassail pellmell lugsail carrell mainsail ponytail countervail martingale swallowtail hangnail fingernail nonpareil tattletale