Set up an unusual lab aboard vessel in Devonport, perhaps (5,4)

'devonport perhaps' is the definition.
I don't know anything about this answer so I can't tell whether this works.

'set up an unusual lab aboard vessel' is the wordplay.
'set up' says the letters should be written in reverse.
'unusual' indicates anagramming the letters.
'aboard' is an insertion indicator.
'vessel' becomes 'vase' (vase is a kind of vessel).
'an' in reverse letter order is 'na'.
'lab' is an anagram of 'lba'.
'lba' going inside 'vase' is 'valbase'.
'na'+'valbase'='NAVAL BASE'

'in' acts as a link.

Can you help me to learn more?