Time to get permit for rendered fat (6)
I believe the answer is:
tallow
'fat' is the definition.
(I've seen this before)
'time to get permit' is the wordplay.
'time' becomes 't' (abbreviation).
'to get' is a charade indicator (letters next to each other).
'permit' becomes 'allow' (synonyms).
't'+'allow'='TALLOW'
'for rendered' is the link.
I am not very happy about this link. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for tallow that I've seen before include "Animal fat used to make ..." , "Candle wax" , "burning fat" , "Outstanding entertainer" , "Fat used for soap/candles" .)