One taking bait on individual cast? (7)
I believe the answer is:
reactor
'one taking bait' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'on individual cast?' is the wordplay.
'on' becomes 're' ('on' can be mean 'with reference to').
'individual cast?' becomes 'actor' (I can't justify this - if you can you should give a lot more credence to this answer).
're'+'actor'='REACTOR'
Can you help me to learn more?
(Other definitions for reactor that I've seen before include "(Nuclear) powerplant" , "Device to produce energy by nuclear fission" , "source of power, perhaps" , "one hosting moderator?" , "Nuclear energy source" .)