From Longman Dictionary of Contemporary Englishcloud the issue/picture etccloud the issue/picture etcCLEAR/EASY TO UNDERSTANDto make a subject or problem more difficult to understand or deal with, especially by introducing unnecessary ideas Uninformed judgments only cloud the issue. → cloud
                                                    
                                                Examples from the Corpus
cloud the issue/picture etc• These comments should not be allowed to cloud the picture too much. 
