Answer: FEUD
FEUD is a crossword puzzle answer that we have spotted 91 times.
    - Hatfield-McCoy affair
 
    - Family troubles
 
    - TV's "Family ___"
 
    - Clash of clans
 
    - Family problem
 
    - More than a tiff
 
    - "Family ___"
 
    - Row between houses?
 
    - Hatfield/McCoy affair
 
    - "Family ___" (Game Show Network rerun)
 
    - Vendetta
 
    - Hatfield/McCoy relationship
 
    - Bitter squabble
 
    - Ongoing hostility
 
    - Fight between families
 
    - Bitter quarrel
 
    - Family versus family
 
    - Long-running conflict
 
    - Long row
 
    - Long-running dispute
 
    - Longstanding animosity
 
    - Clan clash
 
    - Clash
 
    - Bad-blood situation
 
    - Family-vs.-family fight
 
    - Family trouble
 
    - Long-running argument
 
    - Squabble
 
    - Long-running tiff
 
    - Ongoing squabble
 
    - Family fight
 
    - More than an argument
 
    - ''Family ___'' (game show)
 
    - Long-lasting hostilities
 
    - Ongoing quarrel
 
    - Clash between the Hatfields and the McCoys
 
    - Montague vs. Capulet, e.g.
 
    - Long-lasting dispute
 
    - Lingering fight between families
 
    - "Family ___" (game show)
 
    - Interclan conflict
 
    - Longstanding quarrel
 
    - Long-standing quarrel
 
    - 'Family ___'
 
    - Clan quarrel
 
    - Long-term hostility
 
    - Ongoing argument
 
    - Hatfield-McCoy conflict, for one
 
    - Bitter quarrel between two families
 
    - It can go on for years
 
    - Deep-rooted dispute
 
    - Beef
 
    - Not just a tiff
 
    - Family against family
 
    - Quarrel
 
    - Clan vs. clan fight
 
    - Fight between late-night hosts, e.g.
 
    - Blood problem, maybe
 
    - Duel precursor, perhaps
 
    - 'Family '
 
    - Animosity spanning decades
 
    - Family hostility
 
    - Ongoing dispute
 
    - Conflict
 
    - Major row
 
    - It might be resolved through mediation
 
    - Lancaster-York dispute
 
    - Long-term tiff
 
    - Long-running beef
 
    - Long-running fight
 
    - Rhubarb with deep roots?
 
    - Big beef
 
    - Bad blood between rappers, say
 
    - Prolonged dispute
 
    - Longstanding squabble
 
    - 2017 FX miniseries subtitled "Bette and Joan"
 
    - Long-running quarrel
 
    - Dispute between celebs, perhaps
 
    - Nasty, long-running dispute
 
    - Fight protractedly
 
    - Conflict between families, say
 
    - Long-standing dispute
 
    - Family matter, maybe
 
    - Beef that's aged?
 
    - Plot driver in "Romeo and Juliet"
 
    - Reality show fodder
 
    - Bitter dispute
 
    - Long-standing rivalry
 
    - Fight
 
    - Enduring dispute
 
    - Longstanding rivalry