What does the cryptic crossword clue "Tender sausage sandwiches put in container (6)" mean?

The wordplay uses a container (one word inside another). TIN (synonym="TIN") in DOG (synonym="DOG") = DOTING The answer is DOTING.

Tender sausage sandwiches put in container (6)

Guardian Cryptic #29576 | 19 Across | 2024-12-27 flower