Possible Clues:

• Being a contemptible person, he enters back of boozer
• Boozer's a bloodsucker, drinking meths regularly
• A nit drinking what is needed for pub
• That's the old pub
• He reeled in a creep's boozer
• Practise on a hole that's tricky - the nineteenth?
• Old pub
• A contemptible person - he turned up in this pub
• Pub patronised by fishwives?
• Welsh pub