| Answer | Crossword Clue |
|---|---|
| SEAL | Close up tightly |
| SEAL | Close tightly. |
| CLENCH | Close tightly |
| SEAL | Close tightly |
| SEALUP | Close tightly |
| SHUT | Close tightly |
| RESEAL | Close tightly again |
| SEALSHUT | Close very tightly |
| NAILUP | Close tightly, in a way |
| SEAL | Close tightly, as an envelope |
| NAILUP | Close tightly, as a crate |
| CLENCH | Close tightly, as one's hand |
