What does the cryptic crossword clue "Preferred to welcome soggy dew: he’ll wake up damp (9)" mean?

The wordplay uses an anagram. anagram of EDW (synonym="EDW") + BETTER (synonym="‘preferred’") = BEDWETTER The answer is BEDWETTER.

Preferred to welcome soggy dew: he’ll wake up damp (9)

Guardian Cryptic #29514 | 19 Across | 2024-10-15 flower