Out of place in a port - or not (5)
I believe the answer is:
inapt
'out of place' is the definition.
(I've seen this before)
'in a port or not' is the wordplay.
'not' suggests deleting specific letters.
'port' with 'or' taken out is 'pt'.
'in'+'a'+'pt'='INAPT'
(Other definitions for inapt that I've seen before include "Not fitting" , "Ill-chosen, not suitable" , "not seemly" , "Not fit, unsuitable" , "not fit for purpose" .)