Get hold of (5)
'get hold of' is the definition.
(synonyms)
This is all the clue.
(Other definitions for reach that I've seen before include "Attain; extend to" , "Stretch of river: achieve" , "Grasp" , "Hands up" , "Open stretch of water" .)
'get hold of' is the definition.
(obtaining is a kind of getting hold of)
This is the entire clue.
(Other definitions for obtain that I've seen before include "Get one's hands on" , "Get, procure" , "Hold good" , "Get - secure" , "Get or lay hold of" .)