European moving into region without a cost (7)
I believe the answer is:
expense
'cost' is the definition.
(the cost or price of something)
'european moving into region without a' is the wordplay.
'european' becomes 'E' (abbreviation e.g. EU).
'moving into' is an insertion indicator.
'region' becomes 'expanse ' (I've seen this before).
'without' is a deletion indicator.
'expanse' with 'a' taken away is 'expnse'.
'e' placed inside 'expnse' is 'EXPENSE'.
(Other definitions for expense that I've seen before include "What something costs" , "Disbursal" , "Cost - price" , "Charge" , "Outlay or cost" .)