Possible Clues:

• Barriers of horizontal bars and supports
• Fence with such bitter complaints
• The sort of bad language one might be fencing with
• Protective barriers
• Protests about the protection against trespassers?
• Fences of upright metal bars, often around parks
• Barriers producing bitter complaints
• What go around your 17 across go around to be sick of fencing
• Fence by side of river in bad shape, beginning to sink
• They may offer protection when a girl's in distress