Hi LissyVH,
55D. Shock = Astonish
'Ian's host' is an anagram of 'astonish'
60A. Country gentleman = Squire
'I' take the place of 'A' in square = squIre
68A. Oil-rich nation =Iran
'rain' affected (rearranged) = Iran
56D. Remove =Subtract
political article = tract
after
'bus' overturns = sub
52D. Political discontent = Unrest
world body = UN (United Nations)
take a break = rest
54D. Religious retreat = Ashram
'Ram has' is an anagram of 'ashram'
59D. Pertinent = Relevant
'veal' + 'rent' is an anagram of 'relevant'
Hope this helps. Post again if you get stuck.
Good luck in the competition LissyVH!
Regards, Butterfly