What does the cryptic crossword clue "Collaboration with offender and my Lord on the radio? (7)" mean?

The definition is "Collaboration". The wordplay uses a homophone (sounds like). Homophone of “sinner, gee!” The answer is SYNERGY.

Collaboration with offender and my Lord on the radio? (7)

Guardian Cryptic #29044 | 28 Across | 2023-04-14 flower