"fails to elucidate" is correct and usable in written English.
It is commonly used to express that an explanation or argument is unsatisfactory, or not made clear or understandable. For example, "His explanation of the project's timeline fails to elucidate how he plans to meet the deadline."
While the program may lazily honor the memory of the dead adulterer David Harris (played here by Brett Cullen), it fails to elucidate the provocative mysteries of his alive killer wife.
Lymphoscintigraphic planar imaging is a common procedure for sentinel lymph node imaging prior to lymph node biopsy, but fails to elucidate the specific lymphatic drainage.
While monitoring is useful to assess trends and validate models, it often fails to elucidate the processes and factors which influence the net conversion of Hg II) into CH3Hg.
Although the present study is only a short-term investigation that fails to elucidate the long-term therapeutic impact of epirubicin on HCC in an orthotopic animal model, several findings are noteworthy.
By design, this study fails to elucidate the respective contribution of the individual factors (e.g., intuition, skills, and attitudes of those involved in preparing the governmental policy documents) and the contextual political factors [ 1, 2, 13, 14, 23– 27].
The explanation suggested by Fortin and colleagues [ 5] fails to elucidate both the present and previous [ 2] findings: their opinion that the "second peak can be explained only by a second event, namely local failure" are not valid for findings obtained from our analyses that are focused on first events.
In the cerebral cortex there is the same type of opponence with many units, but because cortical cells require stimuli of definite shape and often are not activated by simple spot stimuli, early studies carried out before these requirements were known probably failed to elucidate the true chromatic requirements of these high-order neurons.
Repeat blood work and chest x-ray failed to elucidate an etiology.
Sadly, she failed to elucidate on what that work of art might be.
Every day we fail to elucidate a vision for the country we fall further and further behind the rest of the world.
Trump has, in vague terms, vowed to "save Social Security," but like many other promises he's made, he's failed to elucidate how he would do it.
