The most common and most likely answer to this crossword clue is the 7 letter word THRUSTS
I've seen this crossword clue in The Guardian
T
H
R
U
S
T
S
More clues leading to the result THRUSTS
- Hopes to keep husband in forces
- Drives in and out of American streets
- Believes in maintaining hard drives
- For a short time, an American warship forces past
- Songbirds with time for explosive lunges
- Forces hospital hampered by NHS authorities
- At first he struts rudely about and pushes forward
- Believes in protecting hospital for sudden intrusions
- Drives in regular Utah rots
- . Has belief to overcome heroin urges
Buddy explains!

The straight part
We know that "lunges" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case lunges = thrusts.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.
What does THRUSTS mean?
THRUSTS noun- An attack made by moving the sword parallel to its length and landing with the point.
- A push, stab, or lunge forward (the act thereof.)
- The force generated by propulsion, as in a jet engine.
- The primary effort; the goal.
- To make advance with force.
- To force something upon someone.
- To push out or extend rapidly or powerfully.