Reach church that is in road (7)
I believe the answer is:
achieve
'reach' is the definition.
(synonyms)
'church that is in road' is the wordplay.
'church' becomes 'ch' (common abbreviation).
'that is' becomes 'i.e.' (synonyms).
'in' is an insertion indicator.
'road' becomes 'ave' (abbreviation for avenue).
'ch'+'ie'='chie'
'chie' placed inside 'ave' is 'ACHIEVE'.
(Other definitions for achieve that I've seen before include "Bring about by effort" , "'Accomplish, attain (7)'" , "wrap up" , "Successfully bring off" , "Bring about, accomplish" .)