TAIL OFF
Michael Collins

Q.What do you call an Italian city covered in worn carpets?
A. NAPLESSNAPLES - as in NAPLESS NAPLES

The clues below can also be answered by the same word repeated twice with a single letter in between them - without spacing, as in the example above. The separating letter will always be an S. 

1. Holy Books unprotected from splatters
2. Musical brass instruments free of defects
3. Football players who've lost their equestrian gear
4. Fab Four with a poor sense of rhythm
5. Knitter's surplus

Answers:

1. BIBLESSBIBLES - BIBLESS BIBLES
2. BUGLESSBUGLES - BUGLESS BUGLES
3. TACKLESSTACKLES -  TACKLESS TACKLES
4. BEATLESSBEATLES - BEATLESS BEATLES
5. NEEDLESSNEEDLES - NEEDLESS NEEDLES