| 40th US President |
REAGAN |
| Allocate, a job say |
ASSIGN |
| At one time |
ONCE |
| Black carbon from burning wood |
CHARCOAL |
| Boxer's assistant |
SECOND |
| Burdensome, not easily borne |
ONEROUS |
| Buyer, client |
CUSTOMER |
| Careless and hurried |
SLAPDASH |
| Chirping on a social network |
TWEETING |
| Crime novel, colloquially |
WHODUNIT |
| Decrease, reduce |
CONDENSE |
| Distended, expanded |
SWOLLEN |
| Enthusiastic, eager |
ARDENT |
| Fibrous protein, of skin say |
COLLAGEN |
| Flat-topped height |
PLATEAU |
| Froth formed by soap and water |
LATHER |