15a A family of epiphytic plants with flowers in fantastic shapes and with brilliant colours (11) O - S - - - A - EAE 19A (of birds) having a crest (8) - - - E - T - D thanks
14across - highly infectious, as of diseases 8letters *I*U*E*H 19across - a pedle-coupler in an organ 7letters **S*S*E 23down - absolutist rule 7letters **I*I*M