Tends to have new users working (6)
I believe the answer is:
nurses
'tends' is the definition.
(I've seen this before)
'new users working' is the wordplay.
'new' becomes 'n' (common abbreviation eg NT for New Testament).
'working' indicates anagramming the letters.
'users' with letters rearranged gives 'urses'.
'n'+'urses'='NURSES'
'to have' is the link.
(Other definitions for nurses that I've seen before include "They tend the sick" , "preserves" , "Ministering angels" , "workers in colonies" , "Matrons, midwives etc." .)