Titled bachelor boy (5)
I believe the answer is:
baron
'titled bachelor boy' is the definition.
'Baron' can be an answer for 'boy'. I am not sure about the 'titled bachelor' bit.
'bachelor boy' is the wordplay.
'bachelor' becomes 'B' (abbreviation e.g. BA=Bachelor of Arts).
'boy' becomes 'aron' ().
'b'+'aron'='BARON'
Can you help me to learn more?
(Other definitions for baron that I've seen before include "Born a (anagram) - powerful man of business" , "British peer of the lowest rank" , "powerful businessman" , "Lowest rank of British peerage" , "Title of rank" .)