Big Top Security protecting the swingers with a guarantee in case one falls on hard times (6,3)
I believe the answer is:
safety net
'protecting the swingers with a guarantee in case one falls on hard times' is the definition.
I know nothing about this answer so I cannot judge whether this works.
'big top security' is the wordplay.
I cannot really understand how this works, but
'security' could be 'safety' (I've seen this before) and 'safety' is found in the answer.
The remaining letters 'net' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for safety net that I've seen before include "This may prevent dangerous mishap" , "Acrobats' catcher" , "protective device" , "It catches acrobat in case of fall" , "Guarantee of security" .)