Artist taking husband round historic garden (7)
I believe the answer is:
hogarth
'artist' is the definition.
(William Hogarth, 1697-1764)
'husband round historic garden' is the wordplay.
'husband' becomes 'h' (abbreviation).
'round' becomes 'o' (round can mean a round object).
'historic garden' becomes 'garth' (I can't explain this - if you can you should believe this answer much more).
'h'+'o'+'garth'='HOGARTH'
'taking' is the link.
Can you help me to learn more?
(Other definitions for hogarth that I've seen before include "He depicted" , "Satirical artist" , "He painted" , "William --, English artist and engraver" , "William -, eighteenth century English engraver" .)