Nah, don't trash the plant.
How long have you been in flower?
If you're pretty late into flowering it could have turned hermie because of stress. If that's the case then the plant isn't a true hermie and your clones could be safe, but know that they will hermie easily if stressed.
How many male flowers are you finding? Just a couple here and there? You can easily pick them out (careful not to squeeze it so if puffs the pollen out ... been there, done that).
However, if you've only just turned to 12's then you're probably fucked as far as stopping your clones from hermieing.
Your pot will still be good and smokeable though, so if you have no other access to seeds then keep it.
If the plant went hermie due to stress, then the seeds you'll get will either be female or hermie with a higher percentage of them being female, than hermie, so it's not all bad. No males seeds.
Hope this makes some sense.