The most common and most likely answer to this crossword clue is the 5 letter word ABLER
A
B
L
E
R
More clues leading to the result ABLER
- More talented story-teller needing introduction
- More than competent Hedda blowing head off
- It might describe a more competent seaman
- More competent sailor holding end of rope in both hands
- More accomplished, a cricketer hasn’t got zero wickets
- Increasingly smart to have bag, mostly, when coming up to seller? Not half
- Stable relationship holds stronger
- Fitter, sailor, learner, king
- Real confusion about boy and fitter
- Some loveable rogues are better than others
Buddy explains!

The straight part
We know that "Fitter" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case fitter = abler.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does ABLER mean?
ABLER adjective- Easy to use.
- Suitable; competent.
- Liable to.
- Having the necessary powers or the needed resources to accomplish a task.
- Free from constraints preventing completion of task; permitted to; not prevented from.
- Having the physical strength; robust; healthy.
- Rich; well-to-do.
- Gifted with skill, intelligence, knowledge, or competence.
- Legally qualified or competent.
- Capable of performing all the requisite duties; as an able seaman.