One choice is loom.
Loom
That would be the word........tool.
adze
rake
adze
Rake
rake, hose
"Spindle" is a word that refers to this kind of tool.
FISHTAIL
I searched on Wikipedia for the tool - and apparently it's known as a 'haft' !
A four letter word starting with the letter a is able.
It depends on what you mean by 'four letter word'. Thea has four letters, so yes it is. It is not a swear word, so it's not that kind of 'four letter word'.