DOUBLEDUTCH

Incomprehensible language (6,5)

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

• Quick crossword No 15,427 — 2019-10-16 23:00:36
  18A: Nonsense (6,5)
• Quick crossword No 15,292 — 2019-05-12 23:00:44
  7D: Incomprehensible language (6,5)