Force reluctantly to take the stage as the monster (6)
I believe the answer is:
dragon
'the monster' is the definition.
(dragon is a kind of monster)
'force reluctantly to take the stage' is the wordplay.
I cannot really see how this works, but
'force' could be 'drag' (dragging is a kind of forcing) and 'drag' is located in the answer.
The remaining letters 'on' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
'as' acts as a link.
Can you help me to learn more?
(Other definitions for dragon that I've seen before include "Fire-breathing, winged mythical monster" , "eg Puff, Fafner" , "Seventeen [HARRIDAN]" , "particularly intimidating woman" , "Fierce woman" .)