Son, having lost some weight, tidies up around the edges (8)
I believe the answer is:
strimmer
'lost some weight tidies up around the edges' is the definition.
I don't know anything about this answer so I cannot tell whether this works.
'son' is the wordplay.
I cannot quite understand how this works, but
'son' could be 's' (genealogical abbreviation for son) and 's' is found within the answer.
The remaining letters 'trimmer' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
'having' acts as a link.
Can you help me to learn more?
(Other definitions for strimmer that I've seen before include "Garden equipment" , "Cutter for rough grass etc" , "Gardening implement" , "Machine for cutting grass edges" , "Hand-held grass cutter" .)