Hesitates to deceive group of scientists (6)
I believe the answer is:
havers
'hesitates to deceive' is the definition.
I can't tell whether this defines the answer.
'group of scientists' is the wordplay.
'group of' becomes 'have' (I can't explain this - if you can you should believe this answer much more).
'scientists' becomes 'rs' (Royal Society).
'have'+'rs'='HAVERS'
Can you help me to learn more?
(Other definitions for havers that I've seen before include "Dithers" , "vacillates" , "British actor" , "Acts indecisively" .)