Times journalist finally seen by American theologian (7)
I believe the answer is:
erastus
'theologian' is the definition.
(I've seen this before)
'times journalist finally seen by american' is the wordplay.
'times' becomes 'eras' (an era is a time or period).
'finally' says to take the final letters.
'seen by' means one lot of letters go next to another.
'american' becomes 'US' (abbreviation for United States).
The last letter of 'journalist' is 't'.
'eras'+'t'+'us'='ERASTUS'
(Other definitions for erastus that I've seen before include "opponent of Calvinism" , "theologian" , "Director of public works" .)