There's room for experimentation here (10)
I believe the answer is:
laboratory
'experimentation here' is the definition.
I know that 'experimentation' relates to this answer. I also know that both the answer and definition are singular nouns
'there's room for' is the wordplay.
'there's' is a charade indicator (letters next to each other).
'room' becomes 'lab'.
'for' becomes 'oratory' (I am not sure about this - if you are sure you should believe this answer much more).
'lab' put next to 'oratory' is 'LABORATORY'.
Can you help me to learn more?
(Other definitions for laboratory that I've seen before include "Experimental area" , "Where litmus paper could be" , "Language-learning facility" , "Place for experimentation" , "workplace" .)