Warship restored after tangling with bow of yacht (9)
I believe the answer is:
destroyer
'warship' is the definition.
(destroyer is a kind of warship)
'restored after tangling with bow of yacht' is the wordplay.
'after tangling with' indicates anagramming the letters (letters get tangled up).
'bow of' indicates taking the first letters (front of).
The initial letter of 'yacht' is 'y'.
'restored' with its letters mixed up with 'y' can make 'DESTROYER'.
(Other definitions for destroyer that I've seen before include "Heavily-armed warship" , "Wrecker" , "Naval ship" , "Saboteur" , "Small, fast warship" .)