Is “Clamber” a Scrabble word?
Yes
CLAMBER
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Clamber
/ˈklæmbə/
noun
1.The act of clambering; a difficult or haphazard climb.
verb
1.To climb (something) with some difficulty, or in a haphazard fashion.
“The children clambered over the jungle gym.”