Be a bit floppy (3)
I believe the answer is:
lop
'floppy' is the definition.
(thesaurus)
'be a bit' is the wordplay.
I cannot quite see how this works, but
'bit' could be 'o' (resembles 0, a binary digit or bit) and 'o' is found within the answer.
The remaining letters 'lp' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for lop that I've seen before include "Prune, cut the top off" , "Remove branches from a tree" , "Cut (e.g. branch off)" , "Cut away branches or twigs" , "Chop (off)" .)