Love to work in a unit (5)
I believe the answer is:
adore
'love' is the definition.
(adoring is a kind of loving)
'work in a unit' is the wordplay.
'work in' becomes 'ad' (I can't justify this - if you can you should give a lot more credence to this answer).
'a unit' becomes 'ore' (ore is a kind of unit).
'ad'+'ore'='ADORE'
'to' acts as a link.
Can you help me to learn more?
(Other definitions for adore that I've seen before include "Honour" , "Very much like" , "Love (someone) deeply" , "Love, worship" , "Like a lot" .)