Is half-formed set of beliefs restricting a member of Jewish community? (7)
I believe the answer is:
israeli
'member of jewish community?' is the definition.
'is half-formed set of beliefs restricting a' is the wordplay.
'half-formed' indicates taking half.
'set of beliefs' becomes 'religion'.
'restricting' means one lot of letters goes inside another.
'religion' with half the letters taken is 'reli'.
'reli' going around 'a' is 'raeli'.
'is'+'raeli'='ISRAELI'
(Other definitions for israeli that I've seen before include "From Nazareth?" , "Man from Tel Aviv" , "from part of Middle East?" , "As national of modern republic" , "From Haifa, perhaps" .)