Rule reminder
When two arguments are dislocated or when a dislocated element requires a combined clitic, Italian uses clitic clusters: mi/ti/gli/ci/vi + lo/la/li/le → me lo, te la, glielo, ce li, etc. In dislocation, the compound clitic resumes the dislocated element(s) while the other clitic marks the remaining argument.
Completa: 'Il segreto, ___ ha detto nessuno.'