That which inspires Dutch thought (5)
I believe the answer is:
mused
'thought' is the definition.
(musing is a kind of thinking)
'that which inspires dutch' is the wordplay.
I cannot really understand how this works, but
'dutch' could be 'd' (abbreviation for Dutch) and 'd' is present in the answer.
The remaining letters 'muse' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for mused that I've seen before include "Thought (to oneself)" , "Reflected in silence" , "Fuddled" , "Was absorbed in thought" , "Reflected or pondered" .)