Coastal shipping navigation has explorer arriving on time (8)
I believe the answer is:
cabotage
'coastal shipping navigation' is the definition.
'cabotage' can be an answer for 'navigation' (cabotage is a kind of navigation). I am not sure about the 'coastal shipping' bit.
'explorer arriving on time' is the wordplay.
I cannot really understand how this works, but
'explorer' could be 'cabot' (I've seen this before) and 'cabot' is located in the answer.
'time' could be 'age' (an age is a period of time) and 'age' is present in the answer.
No letters remain.
This explanation may well be incorrect...
'has' is the link.
Can you help me to learn more?
(Another definition for cabotage that I've seen is " navigation in coastal waters".)