Discharge old beer hotel brought in (6)
I believe the answer is:
exhale
'discharge' is the definition.
(I've seen this before)
'old beer hotel brought in' is the wordplay.
'old' becomes 'ex' (prefix meaning former or onetime).
'beer' becomes 'ale' (type of beer).
'hotel' becomes 'h' (phonetic alphabet: alpha, bravo, charlie etc.).
'brought in' is an insertion indicator.
'ex'+'ale'='exale'
'exale' enclosing 'h' is 'EXHALE'.
(Other definitions for exhale that I've seen before include "Joint of chicken" , "Puff away" , "Breathe out" , "expire" , "let breath out" .)