Clark was active in the community and while with the Giants, participating in the 2002 United Way Hometown Huddle by conducting a football clinic at the Highbridge Center for members of Alianza Dominicana, a local United Way agency that services families in Washington Heights. He joined forces with students from the Leadership In Public Services High School located at Ground Zero for "Operation PaintFest." Sponsored by the Foundation for Hospital Art, the participants created paintings of hope that would later be donated to the five New York City hospitals involved in the September 11th tragedies.