Related Clues:

• Third-rate not considered failure
• Reproductive computer virus
• Harmful microorganism
• Blake's unseen flier
• Software fault
• PC woe
• Computer malfunction
• Malware product
• Succumb to fatigue, say
• Flu or fly
• Fish's last bite
• Looking back, Irish king in gamey sort of transport initially quarantined in hospital?
• Fishing bait, often
• Wire-tapping device
• Disease-germ