Potential answers for "Upper ___ (lofty tier)"

⭐⭐⭐⭐ ECHELON
⭐⭐⭐ PHDS
⭐⭐ SOO
⭐⭐ LAYER
⭐⭐ VOLTA
⭐⭐ EAST
⭐⭐ FIXER
⭐⭐ ROW
⭐⭐ TWIT
⭐⭐ LIP

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