Poke around; finally has no work (5)
I believe the answer is:
snoop
'poke' is the definition.
(thesaurus)
'finally has no work' is the wordplay.
'finally' indicates one should take the final letters.
'work' becomes 'op' (common abbreviation for 'opus').
The last letter of 'has' is 's'.
's'+'no'+'op'='SNOOP'
'around' is the link.
(Other definitions for snoop that I've seen before include "Furtively look around" , "Informally, pry inquisitively" , "-- Dogg, US rapper; spy" , "Investigate; pry" , "Furtively investigate" .)