Gas is therefore being recalled, GP admits (6)
I believe the answer is:
gossip
'gas' is the definition.
(I've seen this before)
'is therefore being recalled gp admits' is the wordplay.
'therefore' becomes 'so'.
'being recalled' says the letters should be written backwards.
'admits' indicates putting letters inside.
'is'+'so'='isso'
'isso' back-to-front is 'ossi'.
'ossi' placed within 'gp' is 'GOSSIP'.
(Other definitions for gossip that I've seen before include "gas" , "Idle prattle" , "(Malicious) report about the doings of others" , "'Rumours, scandal (6)'" , "Blatherskite" .)