### Clue: Free time when attacks are to be expected (4,6)
### Answer: OPEN SEASON 
 ### Explanation: Definition: when attacks are to be expected
  OPEN(*free* of obstruction to entry, movement, sight, eg. an Open tournament, an open office) SEASON(*time* of year).
Defn:  When applied to hunting, the period during which it is legal (terms and conditions apply) to catch or hunt fish and game protected by law at other times.  As applied to humans or things, it denotes a period when *attacks*,criticisms,mistreatment are common*,to be expected*,.