Lachie confused about model being honourable? (7)
I believe the answer is:
ethical
'honourable?' is the definition.
(synonyms)
'lachie confused about model' is the wordplay.
'confused' indicates an anagram.
'about' is an insertion indicator.
'model' becomes 't' (Ford Model T car).
'lachie' is an anagram of 'ehical'.
'ehical' going around 't' is 'ETHICAL'.
'being' is the link.
(Other definitions for ethical that I've seen before include "In accordance with approved moral standards" , "Approved moral behaviour" , "Conforming to accepted standards of behaviour" , "lt's available on prescription only" , "not advertised to the general public" .)