Left for example in isolation (5)
I believe the answer is:
aside
'in isolation' is the definition.
(as in being separate or to one side)
'left for example' is the wordplay.
'left' becomes 'ide' (I can't justify this - if you can you should give a lot more credence to this answer).
'for' says to put letters next to each other (I've seen this in other clues).
'example' becomes 'as' (I've seen this in other clues).
'ide' put after 'as' is 'ASIDE'.
(Other definitions for aside that I've seen before include "Actor's line directed solely to audience" , "Out of other people's hearing" , "(Turn) off main path" , "kept in reserve" , "In reserve; actor's remark to audience" .)