The speedo dipping out will cause power loss which will feel a lot like a stall. Its a relatively common fault on these, often due to corroded earth straps behind the dash, worth a check since it's free to fix.
That said it does sound like your issue is more likely clutch switch.
Edit: disappointed nobody has suggested redtube in response to the thread title. Where oh where have all the trolls gone
That said it does sound like your issue is more likely clutch switch.
Edit: disappointed nobody has suggested redtube in response to the thread title. Where oh where have all the trolls gone