Get (6)
'get' is the definition.
(I know that get can be written as obtain)
This is all the clue.
(Other definitions for obtain that I've seen before include "Get, procure" , "Get or receive" , "Hold good" , "Acquire, secure" , "'Get, acquire (6)'" .)
'get' is the definition.
(I know that get can be written as receive)
This is the entire clue.
(Other definitions for receive that I've seen before include "Get" , "Be given (something)" , "Take delivery of" , "Accept; greet" , "Welcome; be given" .)
'get' is the definition.
(I've seen this in another clue)
This is all the clue.
(Another definition for grok that I've seen is " See perfectly".)