Flower in front of garden recalled fairy rings (7)
I believe the answer is:
kingcup
'flower' is the definition.
(kingcup is a type of flower)
'in front of garden recalled fairy rings' is the wordplay.
'front of' says to take the initial letters.
'recalled' says the letters should be written backwards.
'fairy' becomes 'puck' (puck is a kind of fairy).
'rings' is an insertion indicator (some letters are ringed or contained by others).
The first letter of 'garden' is 'g'.
'puck' backwards is 'kcup'.
'in'+'g'='ing'
'ing' inserted within 'kcup' is 'KINGCUP'.
(Other definitions for kingcup that I've seen before include "Marsh marigold" , "Wild flower - pick gun (anag)" , "bloomer" .)