Collect, perhaps, but not all together (3)
I believe the answer is:
Here is my best explanation:
'collect perhaps' is the definition.
(collecting is a kind of getting)
'not all together' is the wordplay.
'not all' indicates the answer is hidden within the clue.
'GET' can be found hidden inside 'together'.
'but' is the link.
(Other definitions for get that I've seen before include "See 18", "Procure from vegetables", "Receive; obtain", "Understand", "Fetch or obtain", "Escape", "Obtain", "Procure or secure" and "Acquire".)