Group of motorists with articles about gas pipe? (7)
I believe the answer is:
trachea
'gas pipe?' is the definition.
(tube conveying air to the lungs)
'group of motorists with articles' is the wordplay.
I cannot quite understand how this works, but
'motorists' could be 'rac' (short for Royal Automobile Club) and 'rac' is found in the answer.
'articles' could be 'thea' (two examples of the part-of-speech: the+a) and 'thea' is found within the remaining letters.
No letters remain.
This may be the basis of clue (or it may be nonsense).
'about' is the link.
(Other definitions for trachea that I've seen before include "air passage" , "airy passage" , "The formal windpipe" , "body part" , "membranous tube" .)