Gun with bolt and collection of buttons (7)
I believe the answer is:
toolbar
'collection of buttons' is the definition.
I know nothing about this answer so I can't judge whether it can be defined by this definition.
'gun with bolt' is the wordplay.
'gun' becomes 'tool' (I've seen this before).
'with' is a charade indicator (letters next to each other).
'bolt' becomes 'bar' (I can't explain this - if you can you should give a lot more credence to this answer).
'tool'+'bar'='TOOLBAR'
'and' is the link.
Can you help me to learn more?
(Other definitions for toolbar that I've seen before include "onscreen utility" , "Line on screen" , "row of buttons" , "A selection of icons" , "Row of icons" .)