Answer:

HORSEMEN

AnswerCrossword Clue
HORSEMENRevelation quartet
HORSEMENTrainers, jockeys et al.
HORSEMENJockeys
HORSEMENDreaded quartet
HORSEMENFour ... of the Apocalypse
HORSEMENBiblical quartet
HORSEMENRevelation foursome
HORSEMENApocalypse quartet
HORSEMENWestern stars.
HORSEMENJockeys.
HORSEMENFour of "Revelation."
HORSEMENNoted foursome
HORSEMENApocalyptic quartet
HORSEMENQuartet in Revelation