Endlessly broad, acquires devices (7)
I believe the answer is:
widgets
'devices' is the definition.
(widget is a kind of device)
'endlessly broad acquires' is the wordplay.
'endlessly' means to remove the last letter.
'broad' becomes 'wide' (synonyms).
'acquires' becomes 'gets' ('get' can be a synonym of 'acquire').
'wide' with its last letter removed is 'wid'.
'wid'+'gets'='WIDGETS'
(Other definitions for widgets that I've seen before include "Small gadgets or components" , "Any gadgets, devices" .)