can i cut back my hellabores that are now looking rather sad and wilting
You can cut off the spent flower heads if you don't want any seed and cut off any brown or spotty foliage but leave the newer, greener leaves to feed the plants roots and make the energy for next spring's show of flowers. If they are otherwise green but wilting they may just be thirsty or need moving to a shadier spot but if you do move them, water well first and again after transplanting and until they re-establish themselves.
I found mine were tatty and using up lots of space so I tied all the leaves in a bunch with garden twine. Looks more tidy now.