Covered with weeds throughout -- gardener gutted, worried now (9)
I believe the answer is:
overgrown
'covered with weeds' is the definition.
(I've seen this before)
'throughout gardener gutted worried now' is the wordplay.
'throughout' becomes 'over' (I've seen this in other clues).
'gutted' says to hollow out the word (remove centre letters) (to gut something is to remove its insides).
'worried' indicates an anagram (worry can mean to interfere with or disturb).
'gardener' with its middle taken out is 'gr'.
'now' anagrammed gives 'own'.
'over'+'gr'+'own'='OVERGROWN'
(Other definitions for overgrown that I've seen before include "covered with weeds" , "in oversize state" , "Covered by vegetation" , "Wild" .)