It's puzzling gin and it came to be ordered (9)
I believe the answer is:
enigmatic
'it's puzzling' is the definition.
('enigmatic' can be a synonym of 'puzzling')
'gin and it came to be ordered' is the wordplay.
'and' says to put letters next to each other (I've seen this in other clues).
'to be ordered' is an anagram indicator.
'it'+'came'='itcame'
'gin' after 'itcame' is 'itcamegin'.
'itcamegin' anagrammed gives 'ENIGMATIC'.
(Other definitions for enigmatic that I've seen before include "Cryptic, mysterious" , "Difficult to interpret" , "with a mystery ingredient" , "Mysterious or puzzling, like Mona Lisa's smile" , "with mysterious substance" .)