What does the cryptic crossword clue "Husband's trapped in bar, cut off (5)" mean?

The wordplay uses a container (one word inside another). H (synonym="husband") in SAVE (synonym="bar – except") = SHAVE The answer is SHAVE.

Husband's trapped in bar, cut off (5)

Guardian Cryptic #29287 | 9 Across | 2024-01-24 flower