Office worker by terminus perhaps lacking initial appeal (10)
I believe the answer is:
temptation
'appeal' is the definition.
(I know that temptation is a type of invitation)
'office worker by terminus perhaps lacking initial' is the wordplay.
I cannot quite see how this works, but
'worker' could be 'temp' (temp is a kind of worker) and 'temp' is located in the answer.
'by' could be 'at' and 'at' is present in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for temptation that I've seen before include "seduction" , "Enticement" , "Enticing desire to do something" .)