Health centre starts to cure lung infections near industrial chimney (6)
I believe the answer is:
clinic
'health centre' is the definition.
(I've seen this before)
'starts to cure lung infections near industrial chimney' is the wordplay.
'starts to' says to take the initial letters.
The initial letters of 'cure lung infections near industrial chimney' is 'CLINIC'.
(Other definitions for clinic that I've seen before include "Medical treatment centre" , "Medical resource" , "Building where outpatients are treated" , "Place for specialised treatment or advice" , "Doctor's session" .)