Bad! Starts to attack old person's telly not being freely available (2,3)
I believe the answer is:
on tap
'freely available' is the definition.
(I've seen this before)
'bad starts to attack old person's telly not' is the wordplay.
'bad' is an anagram indicator.
'starts to' indicates taking the first letters.
The first letters of 'attack old person telly not' is 'aoptn'.
'aoptn' with letters rearranged gives 'ON TAP'.
'being' is the link.
(Other definitions for on tap that I've seen before include "Always available" , "Ready for immediate use" , "kept in a cask" , "Where you may see H or C" , "Immediately available like beer in pub" .)