American Daly, who won The Open at St Andrews in 1995, and Northern Ireland's Clarke, who picked up the Claret Jug at Royal St George's last year, will join a field headlined by world number one Rory McIlroy.
The co-sanctioned European and Asian Tour event takes place at the Sentosa Golf Club from November 5-8 with Spain's Gonzalo Fernandez-Castano defending the title.
The flamboyantly dressed, big hitting Daly and cigar-chomping Clarke have struggled for form of late and could find the going tough with a strong field signed up to compete in Singapore.
Three-times winner Adam Scott of Australia and Major winners Phil Mickelson, South African Louis Oosthuizen and South Korean YE Yang have all signed up to compete in the event.
- Sports & Recreation