Solutions prevailing current trend has 4 entries with similar clues

• 7-letter words
• terrainTract of land with prevailing characteristic
• 8-letter words
• doldrumsEquatorial part of ocean with little prevailing wind
• 12-letter words
• undercurrentSubdued emotional quality contrary to the prevailing atmosphere
• 20-letter words
• the-order-of-the-dayThe prevailing state of affairs