There are 14 words that start with 'cloc'.
| clock | cloche | clocks | 
| cloches | clocked | clocker | 
| clochard | clockers | clocking | 
| clochards | clocklike | clockwise | 
| clockwork | clockworks | |
Note: These 14 words that start with 'cloc' are found from the USA & Canada version of the tournament Scrabble word list.