Port is cold inside, journalist found (10)
I believe the answer is:
discovered
'found' is the definition.
('discover' can be a synonym of 'find')
'port is cold inside journalist' is the wordplay.
'port' becomes 'dover' (port town in Kent).
'cold' becomes 'C' (eg on taps).
'inside' is an insertion indicator.
'journalist' becomes 'ed' (short for editor).
'is'+'c'='isc'
'dover' going around 'isc' is 'discover'.
'discover'+'ed'='DISCOVERED'
(Other definitions for discovered that I've seen before include "Unexpectedly found" , "Found during search" , "Was the first to observe" .)