Close firmly (4)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
seal
(Other definitions for seal that I've seen before include "Ocean mammal or official stamp." , "Mammal seen swimming" , "Make airtight" , "Sea mammal in sale" , "Insignia for sale" .)
I believe the answer is:
seal
(Other definitions for seal that I've seen before include "Ocean mammal or official stamp." , "Mammal seen swimming" , "Make airtight" , "Sea mammal in sale" , "Insignia for sale" .)