LOAM

Rich soil of sand and clay (4)

Solution has appeared in 3 crosswords (2 across and 1 down):

• Quick crossword No 15,947 — 2021-06-16 23:00:18
  16A: Rich soil (4)
• Quick crossword No 15,801 — 2020-12-29 00:00:27
  1D: Rich soil (4)
• Quick crossword No 15,434 — 2019-10-24 23:00:02
  25A: Rich soil of sand and clay (4)