Character husband needs in the end to work at with intensity (6)
I believe the answer is:
deeply
'character husband needs in' is the definition.
I can't tell whether this defines the answer.
'the end to work at with intensity' is the wordplay.
'end' says to take the final letters.
'to work at' becomes 'ply' (I've seen this before).
'with' says to put letters next to each other.
'intensity' becomes 'de' (I can't justify this - if you can you should believe this answer much more).
The final letter of 'the' is 'e'.
'e'+'ply'='eply'
'eply' after 'de' is 'DEEPLY'.
Can you help me to learn more?
(Other definitions for deeply that I've seen before include "Intensely" , "With intense feeling" , "fathoms down?" , "In a profound way" , "Thoroughly" .)