Heading for meal, I will have place setting (6)
I believe the answer is:
milieu
'setting' is the definition.
(I've seen this in another clue)
'heading for meal i will have place' is the wordplay.
'heading for' says to take the initial letters.
'will have' means one lot of letters go next to another.
'place' becomes 'lieu' (as in the phrase 'in lieu of').
The first letter of 'meal' is 'm'.
'm'+'i'+'lieu'='MILIEU'
(Other definitions for milieu that I've seen before include "Environment - setting" , "(Social) setting" , "Social environment or set of surroundings" , "Environmental condition, surrounding" , "'Surroundings, setting (6)'" .)