Agency worker got, finally, invite (5)
I believe the answer is:
tempt
'invite' is the definition.
(I've seen this before)
'agency worker got finally' is the wordplay.
'agency worker' becomes 'temp'.
'finally' says to take the final letters.
The last letter of 'got' is 't'.
'temp'+'t'='TEMPT'
(Other definitions for tempt that I've seen before include "Entice, lure" , "Attract, charm, entice" , "Inveigle" , "Entice; risk provoking (fate)" , "Allure, entice" .)