Tweet may get time in prison and summons (8)
I believe the answer is:
birdcall
'tweet' is the definition.
(tweet can mean a sound made by a bird)
'time in prison and summons' is the wordplay.
'time in prison' becomes 'bird' (bird is slang for time spent in prison).
'and' means one lot of letters go next to another.
'summons' becomes 'call' (I've seen this in another clue).
'bird'+'call'='BIRDCALL'
'may get' is the link.
(Other definitions for birdcall that I've seen before include "Sound of tweeters" , "(Device to imitate) song of songster" , "(Instrument copying) songster's song" .)