New country area includes very peaceful place (7)
I believe the answer is:
nirvana
'peaceful place' is the definition.
'nirvana' can be an answer for 'place' (I have seen 'serene place' mean 'nirvana' so perhaps 'place' could also mean 'nirvana'). I'm not certain of the 'peaceful' bit.
'new country area includes very' is the wordplay.
'new' becomes 'n' (common abbreviation eg NT for New Testament).
'country' becomes 'iran' (Iran is a country).
'area' becomes 'a' (maths abbreviation).
'includes' means one lot of letters goes inside another.
'very' becomes 'v' (abbreviation).
'iran'+'a'='irana'
'irana' placed around 'v' is 'irvana'.
'n'+'irvana'='NIRVANA'
Can you help me to learn more?
(Other definitions for nirvana that I've seen before include "Ultimate state in Buddhism" , "US rock band" , "Buddhist state of perfect bliss" , "Buddhist paradise or hereafter" , "Eastern place of complete bliss" .)