What does the cryptic crossword clue "Enthusiasm that's more difficult for Cockneys, they say (6)" mean?

The definition is "Enthusiasm". The wordplay uses a homophone (sounds like). Sounds like ‘ARDER….in some dialects. The answer is ARDOUR.

Enthusiasm that's more difficult for Cockneys, they say (6)

Times Cryptic #29155 | 13 Across | 2025-02-17 flower