Portion husband consumed in dazed state (7)
I believe the answer is:
tranche
'portion' is the definition.
(I've seen this before)
'husband consumed in dazed state' is the wordplay.
'husband' becomes 'h'.
'consumed in' means one lot of letters goes inside another.
'dazed state' becomes 'trance' (I've seen this before).
'h' going within 'trance' is 'TRANCHE'.
(Other definitions for tranche that I've seen before include "portion of shares" , "Measure" , "Instalment of e.g. loan" , "batch supplied" , "Slice (of income)" .)