Factory with everything! (3,5)
I believe the answer is:
the works
'everything' is the definition.
(I've seen this in another clue)
'factory' is the wordplay.
I cannot quite see how this works, but
'factory' could be 'works' (eg a steel works) and 'works' is present in the answer.
The remaining letters 'the' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
'with' is the link.
Can you help me to learn more?
(Other definitions for the works that I've seen before include "Comprehensive treatment" , "(Give it) everything" , "plant?" , "factory?" .)