| SOCIALIST | One's left thus on federal bureau file? |
| CLOSED | Finished chapter and left, thus upsetting editor (6) |
| OILANDGAS | Like some leases on federal lands |
| HARVARD | University facing block on federal research grants until meeting White House demands. (7) |
| LUSS | Conclusions of Federal Bureau detective's investigations on 19Ac (4) |
| JEDGARHOOVER | Director of the Bureau of Investigation, now the Federal Bureau of Investigation, from 1924-72 (1,5, |
| ASCETIC | Investigators employed in federal bureau come up with self-discipline |
| FBI | Federal Bureau of Investigation (3) |
| UREA | Kidney extract found in Federal Bureau of Investigation (4) |
| GMAN | Slang term for an agent of the Federal Bureau of Investigation (1-3) |
| SOLACE | Comfort thus on a shoestring (6) |
| ASARULE | Rod, suitably marked, might serve thus on most occasions (2,1,4) |
| SODA | Thus, on some days, there's help with the washing (4) |
| SOLENT | Thus, on an annual occasion, it's used for yachting (6) |
| BOLEROS | Dances thus on pitch when in the ascendant (7) |
| LEGLESS | Silver was thus, on one side, hammered |
| SUDS | Thus, on some days, it can help with the washing (4) |
| SOWING | Scattering seed thus on a delta, say (6) |
| EXTENSOR | Start of exercise with 10, repeated thus on right muscle (8) |
| ROYALTY | Treated thus on a train reserved for the Windsors? (7) |