24a Gambling card game of Spanish origin played with three cards, similar to three-card trick (5) M--T- 4d The lowest cross-sectional points along the course of a valley or river from source to mouth...
23a Carry out utensil (9) ----E-E-T
27a Cheap couple have a girl (8) ----E-N-
21d Tie rag around plume (6) ---R--
22d Deity is a chicken in Spain (6) --OL--...