The 40-year-old first signed terms with Surrey in 2000, going on to have a two-decade career in the professional game before retiring last year.
Clarke has been associated with Shrewton since moving to the area in 2017. And he is now set to compete for the Salisbury club from this season.
“I have given the majority of my life to cricket and even though I am now retired from the professional game, I still want to give something back," said Clarke.
"I want to have fun with friends while helping the club progress to higher levels and standards.
“Focusing on recruitment of new players to the club and developing the younger generation the best we can is at the forefront of our minds as a club."
Clarke, a 6ft 4in all-rounder, scored almost 18,000 runs during his illustrious career, also taking more than 800 wickets.
He represented England on 22 occasions, including two Test matches, between 2003 and 2006.
Clarke shone on the county scene. Aside from a tough year as captain at Derbyshire, Clarke started and finished his pro career at Surrey, with an eight-year stay at Warwickshire in between. He won three County Championships, two T20 titles and two ODI trophies.
Shrewton are set to compete in Division Two of the Hampshire Cricket League in 2022, starting their season at Rowledge on May 7.