Communication equipment created by worker group (7)
I believe the answer is:
handset
'communication equipment' is the definition.
'handset' can be an answer for 'equipment' (handset is a kind of equipment). I'm not certain of the 'communication' bit.
'by worker group' is the wordplay.
'by' says to put letters next to each other.
'worker' becomes 'hand' (hand is a kind of worker).
'group' becomes 'set' (both can mean a collection).
'hand' next to 'set' is 'HANDSET'.
'created' is the link.
Can you help me to learn more?
(Other definitions for handset that I've seen before include "Phone receiver" , "Shed tan (anag.)" , "Part of a telephone" , "controller" , "part of phone" .)