Is “Overplay” a Scrabble word?
Yes
OVERPLAY
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 Overplay
verb
1.To overdo or overact one's effect or role.
“When Chris overacted his part again, the director warned that anyone overplaying would be barred from the next production.”
2.To play (a song or record) too frequently.
3.To overestimate one's strength in a game or event, which ultimately may end in a defeat.