Secure and abundant source for weapon (8)
I believe the answer is:
landmine
'weapon' is the definition.
I don't know anything about this answer so I cannot judge whether this works.
'secure and abundant source' is the wordplay.
'secure' becomes 'land' (I've seen this in another clue).
'and' is a charade indicator (letters next to each other).
'abundant source' becomes 'mine' (I've seen this in another clue).
'land'+'mine'='LANDMINE'
'for' is the link.
Can you help me to learn more?
(Another definition for landmine that I've seen is " Explosive".)