Small group in organisation flips over odd clues (7)
I believe the answer is:
nucleus
'small group' is the definition.
'nucleus' can be an answer for 'group' (nucleus is a kind of group). I am not certain of the 'small' bit.
'organisation flips over odd clues' is the wordplay.
'organisation' becomes 'un' (UN is an example**).
'flips over' is a reversal indicator (I've seen 'flipped over' mean this).
'odd' indicates anagramming the letters.
'un' written backwards gives 'nu'.
'clues' is an anagram of 'cleus'.
'nu'+'cleus'='NUCLEUS'
'in' acts as a link.
Can you help me to learn more?
(Other definitions for nucleus that I've seen before include "Central mass of a cell" , "Central part of a cell" , "central component" , "centrepiece?" , "Atom's core" .)