What does the cryptic crossword clue "Corrupt impersonator is hunched over (4,6)" mean?

The wordplay uses a charade (building blocks). BENT (synonym="corrupt") + DOUBLE (synonym="impersonator") = BENTDOUBLE The answer is BENTDOUBLE.

Corrupt impersonator is hunched over (4,6)

Guardian Cryptic #25225 | 13 Down | 2011-01-21 flower