Concerned about piggies maybe cutting tongue back on truffle hunt? (7)
I believe the answer is:
digital
'concerned' is the definition.
Although both the answer and definition are adjectives, I don't see how one could define the other.
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for digital that I've seen before include "finger" , "form of technology" , "Of watch, showing time in numbers" , "Of fingers or arithmetical figures" , "Showing data in numbers" .)