The most common and most likely answer to this crossword clue is the 7 plus 8 letter word WEATHER FORECAST
I've seen this crossword clue in The Guardian
W
E
A
T
H
E
R
F
O
R
E
C
A
S
T
More clues leading to the result WEATHER FORECAST
- Newspaper feature teacher edited with software
- Prediction heard if warning players
- Met expectations?
- ‘Car of sweetheart polluted’
- Stand for European pitch met estimate
- Predicton a farce, other winds going in a particular direction
- Future conditions overcome on behalf of English actors
- “Variable after a shower” etc?
- Sow hectare after unusual prediction from the Met Office
- Expected conditions to endure for English actors
Buddy explains!

The straight part
We know that "Expected conditions" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case expected conditions = weather forecast.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.