Side by side, at midday, having a bit of chicken (7)
I believe the answer is:
abreast
'side by side' is the definition.
(synonyms)
'a bit of chicken' is the wordplay.
'bit of chicken' becomes 'breast' ('breast' is part of 'chicken').
'a'+'breast'='ABREAST'
'at midday having' acts as a link.
I am not very happy about this link. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for abreast that I've seen before include "Alongside one another and facing the same way" , "Well-informed" , "acquainted" , "shoulder to shoulder" , "On a level together" .)