What does the cryptic crossword clue "To chop down trees on site affords redeveloping (11)" mean?

The wordplay uses an anagram. anagram of SITE + AFFORDS = DISAFFOREST The answer is DISAFFOREST.

To chop down trees on site affords redeveloping (11)

Times Cryptic #28543 | 4 Down | 2023-03-06 flower