Related Clues:
- Old doctor with lust ensnaring nurse, finally
- Semi-diaphanous round, small bug
- Scoundrel, catching cold, turned into parasite
- Sponger who was once a doctor
- Exploiter of others given shelter by church
- Pest one introduced to a high degree
- Scrounger taps general first
- Instant - credit
- Insect feeding on plant juices
- Bloodsucker - credit!
- Parasite - hanger-on
- Medicinal sucker
- Mark of work done (right)
- Credit - bloodsucker
- Horticultural pest