A huge organ, always (2,3,5)
I believe the answer is:
at all times
'always' is the definition.
(synonyms)
'a huge organ' is the wordplay.
'huge' becomes 'tall' (large in size).
'organ' becomes 'Times' (organ can mean a newspaper).
'a'+'tall'+'times'='AT ALL TIMES'
(Other definitions for at all times that I've seen before include "never failing to appear" , "Always" , "Constantly" .)