The phrase "an indication of lack" is correct and usable in written English.
It can be used to describe a sign or signal that something is missing or insufficient.
Example: "The empty shelves in the store were an indication of lack of supply due to the recent demand surge."
Alternatives: "a sign of deficiency" or "a signal of absence".
The TED spread is an indication of lack of trust in financial markets; its widening was a sign that things were going bad.
We do not see Viacom's brief as an indication of lack of interest to work with us; in fact, all of our conversations withthem and other studios have become increasingly positive.
The matrix effect calculated for DOX (A/B × 100) at different levels showed a %CV (n = 6) of 3.12 for LQC and 3.37 for HQC whereas the %CV < 5 is an indication of lack of matrix effect.
While health workers saw inappropriate or over-servicing as an indication of lack of competency or necessary defensive practice, patients assumed they were directed to maximising revenues (table 1).
The high risk of low Apgar score may be due to prematurity, while on the other hand it may be an indication of lack equipment/supplies and lifesaving skills of new-borns who are born preterm/low birth weight in the study setting.
The moral tone that facilitators sometimes resorted to was both an indication of lack of exposure to the theories and methods used by adult educationalists (where the role of the educator is to enable and support the pupil to learn for themselves) as well as a mark of the strong need the facilitators felt to be advocates for the EPP.
These results may be seen as an indication of lacking readiness to change, and suggests that more work need to be done to create such readiness within the workforce.
It is not an indication of lacking trust––it's common sense and good precaution.
Her nudity is an indication of her lack of defenses.
