Answer: hiddenballtrick

AnswerCrossword Clue
HIDDENBALLTRICKDiamond deception found in this grid nine times: eight in square four-letter clusters, the ninth formed by the clusters' outline
HIDDENBALLTRICKPlayer's ploy
HIDDENBALLTRICKRarely successful diamond play
HIDDENBALLTRICKDiamond deception