Releasing uranium, home visitor’s put away (6)
I believe the answer is:
ingest
'put away' is the definition.
(I've seen this in another clue)
'releasing uranium home visitor's' is the wordplay.
'releasing' suggests deleting specific letters.
'uranium' becomes 'U' (U is the chemical symbol for uranium).
'home' becomes 'in' (to be in is to be (at) home).
'visitor' becomes 'guest' (someone visiting a place).
'in'+'guest'='inguest'
'inguest' with 'u' taken out is 'INGEST'.
(Other definitions for ingest that I've seen before include "Scoff" , "Swallow, absorb" , "How to take courses" , "Absorb, assimilate" , "Take (food) into the body" .)