### Clue: Fear of novelty washer in replacement of a hip bone (9)
### Answer: NEOPHOBIA 
 ### Explanation: Definition: Fear of novelty
 O(an object shaped like an O, say, a washer/a flat ring between adjoining surfaces) **contained in**(in) **anagram of**(replacement of) A HIP BONE.
Defn: …/anything that's new or unfamiliar.