To my knowledge, there's only one player named Andrew DeClercq in NBA history:

Andrew Donald DeClercq, a center and power forward who played for ten seasons (1995-2005) for the Golden State Warriors, Boston Celtics, Cleveland Cavaliers, and Orlando Magic.

An interesting fact about Andrew DeClercq is that despite being drafted in the second round (34th overall) in 1995, he carved out a respectable career playing for ten seasons. He wasn't a superstar by any means, but he managed to find his niche in the league through hard work and perseverance.