Still gutted, live in past (7)
I believe the answer is:
silence
'still' is the definition.
(I know that still can be written as silence)
'gutted live in past' is the wordplay.
'gutted' suggests removing the centre (to gut something is to remove its insides).
'in' is an insertion indicator.
'past' becomes 'since' (I've seen this before).
'live' with its centre removed is 'le'.
'le' inserted inside 'since' is 'SILENCE'.
(Other definitions for silence that I've seen before include "Quietude" , "Lack of sound" , "may be required in court" , "'The rest is - - '(Hamlet)" , "Shut up!" .)