Fear finding one in a phone box out of order? (10)
I believe the answer is:
xenophobia
'fear finding one' is the definition.
'xenophobia' can be an answer for 'fear' (I have seen 'Fear of foreigners' mean 'xenophobia' so perhaps 'fear' could also mean 'xenophobia'). I am not certain of the 'finding one' bit.
'a phone box out of order?' is the wordplay.
'out' indicates an anagram (out can mean wrong or inaccurate).
'of order?' becomes 'ia' (I can't justify this - if you can you should give a lot more credence to this answer).
'phone'+'box'='phonebox'
'phonebox' with letters rearranged gives 'xenophob'.
'xenophob'+'ia'='XENOPHOBIA'
'in' acts as a link.
Can you help me to learn more?
(Other definitions for xenophobia that I've seen before include "Hatred of foreigners" , "Hatred of the foreign" , "intolerance" , "Excessive fear of foreigners" , "for blocking of foreign connections?" .)