Chart set out each airway (7)
I believe the answer is:
trachea
'airway' is the definition.
(I've seen this before)
'chart set out each' is the wordplay.
'set out' is an anagram indicator.
'each' becomes 'ea' (abbreviation).
'chart' with letters rearranged gives 'trach'.
'trach'+'ea'='TRACHEA'
(Other definitions for trachea that I've seen before include "pipe" , "airway" , "get air supply through this" , "where air passes" , "The formal windpipe" .)