Husband loves extremely short cleaner (6)
I believe the answer is:
hoover
'cleaner' is the definition.
(I've seen this before)
'husband loves extremely short' is the wordplay.
'husband' becomes 'h'.
'loves' becomes 'oo'.
'extremely' becomes 'very' (I've seen this before).
'short' means to remove the last letter.
'very' with its final letter taken off is 'ver'.
'h'+'oo'+'ver'='HOOVER'
(Other definitions for hoover that I've seen before include "Vacuum-cleaner" , "Clean with vacuum cleaner" , "J Edgar . . . . . . was FBI chief" , "J Edgar ...... was FBI boss." , "Former president of US and vacuum cleaner" .)