Horny guy, for example, runs round middle of brothel (5)
I believe the answer is:
satyr
'horny guy' is the definition.
The definition and answer can be both people as well as being singular nouns.
Maybe you can see an association between them that I don't see?
'for example runs round middle of brothel' is the wordplay.
'for example' becomes 'say' ('say' can be used to introduce an example).
'runs' becomes 'r' (cricket abbreviation).
'round' means one lot of letters goes inside another.
'middle of' means to look at the middle letters.
The central letter of 'brothel' is 't'.
'say'+'r'='sayr'
'sayr' going around 't' is 'SATYR'.
Can you help me to learn more?
(Other definitions for satyr that I've seen before include "Lustful, drunken woodland god" , "Mythological woodland deity" , "Oversexed chap" , "Sensualist" , "Woodland god, half man and half goat" .)