Showing no special preference, not land up catching show (2,2,5)
I believe the answer is:
as it comes
'showing no special preference' is the definition.
(as in having a cup of tea 'as it comes')
'not land up catching show' is the wordplay.
'not land' becomes 'sea' (sea is the opposite of land).
'up' says the letters should be written backwards (in down clue: letters go upwards).
'catching' indicates putting letters inside.
'show' becomes 'sitcom' (sitcom is a kind of show).
'sea' backwards is 'aes'.
'aes' placed around 'sitcom' is 'AS IT COMES'.
(Other definitions for as it comes that I've seen before include "the way it's made" , "in no particular order" , "however produced" .)