Remove reproductive capacity of old rat? (6)
I believe the answer is:
geldof
'remove reproductive capacity' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.
'old rat?' is the wordplay.
I cannot quite understand how this works, but
an anagram of 'old' is 'ldo' which is present in the answer.
This may be the basis of the clue (or it may be nonsense).
'of' is the link.
Can you help me to learn more?
(Other definitions for geldof that I've seen before include "Bob --, Irish singer" , "Bob -- (Band Aid)" , "Sir Bob ..., once a Boomtown Rat" .)