His products may be near at hand for the present time (10)
I believe the answer is:
watchmaker
'his products' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
'be near at hand for the present time' is the wordplay.
I cannot really understand how this works, but
'be' could be 'make' (making is a kind of being) and 'make' is present in the answer.
'at' is within the answer.
'hand' could be 'r' (abbreviation for right, as in the right-hand side) and 'r' is found within the answer.
This may be the basis of the clue (or it may be nonsense).
'may' is the link.
Can you help me to learn more?
(Another definition for watchmaker that I've seen is " One producing small movements".)