Rough indication partly showing where dinghy comes from (5)
I believe the answer is:
hindi
'where dinghy comes from' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how one could define the other.
'rough indication partly showing' is the wordplay.
'showing' indicates the answer is hidden within the clue (the answer is shown in the clue).
'HINDI' is hidden within 'rough indication partly'.
Can you help me to learn more?
(Other definitions for hindi that I've seen before include "Indian language" , "It's spoken abroad" , "Language derived from Sanskrit" , "tongue" , "Language of northern India" .)