جرب الكود التالي
Sub ClearIfFound()
Dim Cell As Range
Dim blFound As Boolean
Application.ScreenUpdating = False
For Each Cell In Range("A7:A" & Cells(Rows.Count, 1).End(xlUp).Row)
blFound = Application.WorksheetFunction.CountIf(Range("L1:U5"), Cell.Value)
If blFound = True Then Cell.EntireRow.ClearContents
Next Cell
Application.ScreenUpdating = True
End Sub