Ignored the outmoded port (6,4)
I believe the answer is:
passed over
'ignored' is the definition.
(I've seen this before)
'outmoded port' is the wordplay.
'outmoded' becomes 'passe' (synonyms).
'port' becomes 'dover' (port town in Kent).
'passe'+'dover'='PASSED OVER'
'the' is the link.
(Other definitions for passed over that I've seen before include "Disregarded" , "not taken into consideration" , "ignored" .)