See boss working last in shipyard, intensely focused (8)

I believe the answer is:

obsessed

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'intensely focused' is the definition.
Although both the answer and definition are past participle verbs, I don't see how one could define the other.

'see boss working last in shipyard' is the wordplay.
'working' indicates anagramming the letters.
'last in' indicates one should take the final letters.
The last letter of 'shipyard' is 'd'.
'see'+'boss'='seeboss'
'seeboss' is an anagram of 'obsesse'.
'obsesse'+'d'='OBSESSED'

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(Other definitions for obsessed that I've seen before include "Hung up" , "Showing excessive or compulsive concern with something" , "Persistently preoccupied" , "Being excessively concerned with something" , "Compulsively concerned with something" .)

I've seen this clue in The Guardian.

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