The most common and most likely answer to this crossword clue is the 7 letter word MANIKIN
I've seen this crossword clue in The Times
M
A
N
I
K
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More clues leading to the result MANIKIN
Buddy explains!
The straight part
We know that "Little fellow" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case little fellow = manikin.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 MANIKIN mean?
MANIKIN noun- A little man (sometimes as a term of endearment).
- A three-dimensional figure, dummy or effigy representing a man or person.
- A dummy, or life-size model of the human body, used for the fitting or displaying of clothes
- A jointed model of the human body used by artists, especially to demonstrate the arrangement of drapery
- An anatomical model of the human body for use in teaching of e.g. CPR
- A person who models clothes