The phrase "an initial indicative" is correct and usable in written English.
It can be used in contexts where you are referring to an early sign or indication of something, often in academic or analytical writing.
Example: "The study provided an initial indicative of the trends we might expect in the coming years."
Alternatives: "a preliminary indication" or "an early sign".
The potential for another bid from the chairman et al supports the share price, although with the share price now at 30% above the initial indicative bid, a further offer is far from assured.
"We have set an initial closing date for indicative offers for the business and assets for 12pm on Monday 18 May, after which we will be better able to assess the level of interest.
Both the calculated and measured temperature profiles exhibit an initial sharp drop, which is indicative of a relatively rapid hydrogen desorption rate compared to the heat supply rate from the vessel external walls at the early stages.
The less pronounced shoulders shown in the phenolic region (140 160 ppm) are indicative of an initial smaller relative contribution of O-substituted aromatic carbons, pertaining to lignin and lignan components (Fig. 1).
Specifically, we contribute to observations indicating captive-reared GH transgenic and farmed adult male salmon have a mating disadvantage relative to wild individuals, a gene flow scenario indicative of an initial invasion.
Participants 237 women with symptoms and signs indicative of lymphoedema from an initial 1930 eligible women.
The would-be bidders were forced to raise their indicative offer three times after an initial approach at 720p a share in October was summarily dismissed by the makers of Foster's, Strongbow and John Smith's as "unsolicited and unwelcome".
Carlsberg and Heineken were forced to raise their indicative price three times after an initial approach at 720p a share in October was summarily dismissed as "unsolicited and unwelcome".
A biphasic current with an initial peak and a slowly developing sustained phase is indicative for activation of CaCCs.
During this phase there is an initial increase in expression of the intermediate filament protein nestin (NES), peaking at 3 days of RA, indicative of a temporary pool of proliferating neuroprogenitor cells [32].
