What does the cryptic crossword clue "Eschewer of responsibility jailed by loveless tyrant (7)" mean?

The wordplay uses a container (one word inside another). ONUS (synonym="‘responsibility’") in NER (synonym="NER") = NONUSER The answer is NONUSER.

Eschewer of responsibility jailed by loveless tyrant (7)

Guardian Cryptic #29401 | 8 Down | 2024-06-05 flower