One struggling to corral ten beasts (4)
I believe the answer is:
oxen
'beasts' is the definition.
(I've seen this in another clue)
'one struggling to corral ten' is the wordplay.
I cannot quite understand how this works, but
'one' could be 'o' (I've seen this in other clues) and 'o' is found within the answer.
'ten' could be 'x' (Roman numeral) and 'x' is present in the answer.
The remaining letters 'en' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for oxen that I've seen before include "workers in the field?" , "Domestic bovines" , "Domesticated bovine draft animals" , "Lowers" , "Steers" .)