What does the cryptic crossword clue "Build up a holiday island, as you might say (7)" mean?

The definition is "Build up". The wordplay uses a homophone (sounds like). A, sounds like CRETE the Greek island. The answer is ACCRETE.

Build up a holiday island, as you might say (7)

Times Cryptic #28827 | 2 Down | 2024-01-31 flower