Welcome the way one's accepted by cook repeatedly (3,2,3,2)
I believe the answer is:
how do you do
'welcome' is the definition.
(I've seen this before)
'the way one's accepted by cook repeatedly' is the wordplay.
I cannot really understand how this works, but
'way' could be 'w' (Compass direction - West) and 'w' is present in the answer.
'cook' could be 'do' (I've seen this in other clues) and 'do' is found in the answer.
This may be the basis of clue (or it may be nonsense).
(Other definitions for how do you do that I've seen before include "Greeting - awkward situation" , "Welcome" , "Hot water" , "difficult situation" , "Polite enquiry after ones health?" .)